Publications by authors named "Samir Kumar Saha"

Hexavalent chromium (Cr (VI)), a toxicant of environmental concern, frequently enters into water bodies and produces oxidative stress in fish. The antioxidant enzymes, Superoxide dismutase (SOD), Catalase (CAT), and Glutathion S-transferase (GST) are activated to counteract the oxidative stress in fish. This study explores the pattern of activation of these enzymes in gill, muscle, liver, and kidney tissues of Nile tilapia Oreochromis niloticus exposed to 9.

View Article and Find Full Text PDF

Chromium (Cr) is a significant pollutant in the effluents from leather industries and domestic city sewage. Cr was determined in water, sediment, and different tissues (gill, muscle, intestine, liver, and kidney) of Nile tilapia, Oreochromis niloticus harvested from wastewater-fed aquaculture (WFA) situated at Bamonghata, Bantala, Chowbaga and Chingrighata of East Kolkata Wetlands (EKW), a Ramsar site in West Bengal, India. The results showed that Cr concentration in surface water ranged between 0.

View Article and Find Full Text PDF

Background: Chronic kidney disease (CKD) is linked to major health consequences and a poor quality of life. Despite the fact that CKD is becoming more prevalent, public knowledge of the disease remains low.

Objective: This study aimed to evaluate the outcome of a health education intervention designed to enhance knowledge, health-related quality of life (QOL), and motivation about healthy lifestyle among adults with CKD.

View Article and Find Full Text PDF

Background: Despite the growing burden of chronic kidney disease (CKD), disease knowledge and understanding are still lacking, especially in Bangladesh.

Objective: The aim of this study was to evaluate the outcome of a health education intervention in order to enhance knowledge, health-related quality of life (QOL), and motivation regarding healthy lifestyles among rural and periurban adults suffering from CKD.

Methods: A parallel-group (1:1) randomized controlled trial is ongoing in the Mirzapur subdistrict, Bangladesh, where two groups of patients with CKD are being compared.

View Article and Find Full Text PDF

Matrix metalloproteinase (MMP), a protease enzyme, participates in proteolytic cleavage of extracellular matrix proteins from Drosophila and mammals. But, recent studies have revealed other physiologically important roles of MMP in Drosophila. MMP contributes to cardioblast movement and distribution of collagen proteins during cardiogenesis in developing Drosophila.

View Article and Find Full Text PDF

Background: Studies have labelled chronic kidney disease (CKD) among the adult population in urban Bangladesh. To address knowledge gaps on CKD, we aimed to generate data on prevalence, health and nutrition of CKD individuals living in rural and peri-urban Bangladesh.

Methods: Participants were recruited from the Mirzapur Demographic Surveillance System by age-stratified random sampling.

View Article and Find Full Text PDF
Article Synopsis
  • * The study analyzed the CRISPR-Cas system of Typhi using whole-genome sequences from 1059 isolates in South Asia, revealing two distinct groups of CRISPR loci and identifying patterns linked to AMR status and other characteristics.
  • * Additionally, the research identified new genes and specific variants within the Typhi genome associated with drug resistance, highlighting potential biomarkers for more effective diagnostics and treatment strategies.
View Article and Find Full Text PDF

Pulmonary rehabilitation (PR) is a guideline-recommended multifaceted intervention that improves the physical and psychological well-being of people with chronic respiratory diseases (CRDs), though most of the evidence derives from trials in high-resource settings. In low- and middle-income countries, PR services are under-provided. We aimed to review the effectiveness, components and mode of delivery of PR in low-resource settings.

View Article and Find Full Text PDF

More than half of the people with chronic respiratory diseases (CRDs) live in low- and middle-income countries (LMICs). The increasing disability, reduced productivity, associated anxiety and depression from CRDs result in social isolation and economic hardship for patients and their families. Pulmonary rehabilitation (PR) is a guideline-recommended multidisciplinary and multifaceted intervention that improves the physical and psychological condition of people with CRD.

View Article and Find Full Text PDF

Background: Gestational age (GA) is a key determinant of newborn survival and long-term impairment. Accurate estimation of GA facilitates timely provision of essential interventions to improve maternal and newborn outcomes. Menstrual based dating, ultrasound based dating, and neonatal estimates are the primarily used methods for assessing GA; all of which have some strength and weaknesses that require critical consideration.

View Article and Find Full Text PDF

Introduction: Reducing neonatal mortality rate (NMR) is a challenge in many low- and middle-income countries including Bangladesh. In 2014, the estimated NMR in this country was 28 per 1,000 live births. This rate is higher in rural regions compared to the national average.

View Article and Find Full Text PDF

Background: Enteric fever predominantly affects children in low- and middle-income countries. This study examines the burden of enteric fever at the 2 pediatric hospitals in Dhaka, Bangladesh and assesses their capacity for inclusion in a prospective cohort study to support enteric fever prevention and control.

Methods: A descriptive study of enteric fever was conducted among children admitted in 2013-2014 to inpatient departments of Dhaka Shishu and Shishu Shashthya Foundation Hospitals, sentinel hospitals of the World Health Organization-supported Invasive Bacterial Vaccine Preventable Disease surveillance platform.

View Article and Find Full Text PDF

Introduction: Though metal based drugs have been prescribed in Ayurveda for centuries to treat various diseases, such as rheumatoid arthritis and cancer, toxicity of these drugs containing heavy metal is a great drawback for practical application. So, proper scientific validation of herbo-metallic drugs like Arkeshwara Rasa (AR) have become one of the focused research arena of new drugs against cancers.

Aim: To investigate the in vitro anticancer effects of AR.

View Article and Find Full Text PDF
Article Synopsis
  • The World Health Organization (WHO) oversees rotavirus diarrhea and invasive bacterial disease (IBD) surveillance at 178 sites across 60 countries, but only 78 sites do both.
  • A six-month study collected stool samples from children under five with diarrhea to assess the burden of rotaviral infection and characteristics, finding a 54% positivity rate for rotavirus among tested samples.
  • The successful data collection and testing at an IBD sentinel site suggests that integrating rotavirus surveillance with existing IBD systems could enhance disease monitoring in countries lacking current rotavirus programs.
View Article and Find Full Text PDF

Background: Because access to care is limited in settings with high mortality, exclusive reliance on the current recommendation of 7-10 days of parenteral antibiotic treatment is a barrier to provision of adequate treatment of newborn infections.

Methods: We are conducting a trial to determine if simplified antibiotic regimens with fewer injections are as efficacious as the standard course of parenteral antibiotics for empiric treatment of young infants with clinical signs suggestive of severe infection in 4 urban hospitals and in a rural surveillance site in Bangladesh. The reference regimen of intramuscular procaine-benzyl penicillin and gentamicin given once daily for 7 days is being compared with (1) intramuscular gentamicin once daily and oral amoxicillin twice daily for 7 days and (2) intramuscular penicillin and gentamicin once daily for 2 days followed by oral amoxicillin twice daily for additional 5 days.

View Article and Find Full Text PDF

Hypothyroid-associated reproductive disorders have now become a striking phenomenon worldwide but the molecular mechanism behind these disorders is not fully known. Pitx2 gene encodes homeodomain transcription factor, which regulates Plod2 gene in brain tissue, transactivates gonadotropin genes in pituitary and plays a substantial role in cell growth and proliferation in different tissues. Pitx2 binds to Plod2 promoter and activates this gene in rat ovary.

View Article and Find Full Text PDF

Plasma tachykinin levels are known to be altered with sexual acyclicity and loss of reproductive function. Ovulatory dysfunction, as seen in postmenopausal women, is also often encountered in hypothyroid patients. To know the involvement of different tachykinin genes in hypothyroidism-associated reproductive disorders, we performed DD-PCR with the pituitary RNA of control and hypothyroid rats to see the differentially expressed gene profile.

View Article and Find Full Text PDF

Collagen biosynthesis is a multistep process that starts with the transcription and translation of the individual collagen gene. It is characterized by the presence of a large number of co- and posttranslational modifications. Hydroxylysine is found only in animal proteins and mostly in collagens.

View Article and Find Full Text PDF

Hypothyroid-induced reproductive malfunction in both the sexes is a common phenomenon of global concern. In an attempt to characterize the differentially expressed genes that might be responsible for these disorders, we have identified a number of clones in hypothyroid rat ovary by subtractive hybridization. One such clone is procollagen lysyl hydroxylase2 (Plod-2), the key enzyme for the first step of collagen biosynthetic pathway, which was down-regulated in hypothyroid condition.

View Article and Find Full Text PDF