A simple monophasic LGPY medium for routine maintenance of Leishmania donovani promastigotes.

Here, we report a simple, economic and autoclavable monophasic LGPY medium supplemented with 10% fetal bovine serum (FBS), for routine maintenance of Leishmania donovani promastigotes for laboratory use. In comparison to commercially available M199 and RPMI-1640 media, LGPY has shown approximately seven fold more cell growth. The parasite has been observed to survive in the medium for at least 15 days post-inoculation. The medium also supports long-term sub-passaging of the promastigotes and can also be stored at 4 °C or room temperature for 14 months and 45 days, respectively.

Quality of routine immunization service: Perception of clients.

BACKGROUND: Immunization prevents over 2-3 million deaths each year worldwide. In India, even though vaccines are offered free of cost at public health facilities the coverage remains low. Limited scrutiny has been conducted at health service and client interface for routine immunization (RI) services, which may have been affecting the acceptance of vaccines. This emphasizes the importance of assessing the level of satisfaction and perceived quality of clients regarding RI services. OBJECTIVES: This study aimed to assess the perceived quality and level of overall general satisfaction with RI services of clients. In addition, determine the association of factors influencing clients perceived quality and overall general satisfaction with RI services. METHODS: A community-based cross-sectional study was conducted in an urbanized village of Delhi from November 2015 to April 2017. A total of 279 RI visits were covered in the study, and the clients were interviewed at their residence using a pretested tool. RESULTS: The dissatisfaction toward the domains of perceived quality of RI services was reported to be 3.2% for vaccine availability, 9.7% for vaccine information, 3.2% for staff behavior, 6.1% for doctor behavior, and 7.5% for infrastructure. Multivariable-regression analysis indicated that distance to health facility, literacy and age of the client, doctor behavior, staff behavior, and infrastructure had an effect on overall general satisfaction of client toward RI services. CONCLUSIONS: The client's perception is multidimensional; improvement in one domain is likely to strengthen the other. By understanding the client's perspective toward quality of RI service, the health-care mangers may improve the level of overall satisfaction.

Perceptions, practices and health seeking behaviour constrain JE/AES interventions in high endemic district of North India.

BACKGROUND: Acute Encephalitis Syndrome (AES) and Japanese Encephalitis (JE) stay as poorly understood phenomena in India. Multiple linkages to determinants such as poverty, socio-economic status, gender, environment, and population distribution, make it a greater developmental issue than just a zoonotic disease. METHODS: A qualitative study was conducted to map knowledge, perceptions and practices of community and health systems level stakeholders. Seventeen interviews with utilizers of AES care, care givers from human and veterinary sectors, Non-governmental Organizations (NGOs), and pig owners and 4 Focused Group Discussions (FGDs) with farmers, community leaders, and students were conducted in an endemic north Indian district-Kushinagar. RESULTS: Core themes that emerged were: JE/AES been perceived as a deadly disease, but not a major health problem; filthy conditions, filthy water and mosquitoes seen to be associated with JE/AES; pigs not seen as a source of infection; minimal role of government health workers in the first-contact care of acute Illness; no social or cultural resistance to JE vaccination or mosquito control; no gender-based discrimination in the care of acute Illness; and non-utilization of funds available with local self govt. Serious challenges and systematic failures in delivery of care during acute illness, which can critically inform the health systems, were also identified. CONCLUSION: There is an urgent need for promotive interventions to address lack of awareness about the drivers of JE/AES. Delivery of care during acute illness suffers with formidable challenges and systematic failures. A large portion of mortality can be prevented by early institution of rational management at primary and secondary level, and by avoiding wastage of time and resources for investigations and medications that are not actually required.

Toxic heavy metal ions contamination in water and their sustainable reduction by eco-friendly methods: isotherms, thermodynamics and kinetics study.

Heavy metal ions can be introduced into the water through several point and non-point sources including leather industry, coal mining, agriculture activity and domestic waste. Regrettably, these toxic heavy metals may pose a threat to both humans and animals, particularly when they infiltrate water and soil. Heavy metal poisoning can lead to many health complications, such as liver and renal dysfunction, dermatological difficulties, and potentially even malignancies. To mitigate the risk of heavy metal ion exposure to humans and animals, it is imperative to extract them from places that have been polluted. Several conventional methods such as ion exchange, reverse osmosis, ultrafiltration, membrane filtration and chemical precipitation have been used for the removal of heavy metal ions. However, these methods have high operation costs and generate secondary pollutants during water treatment. Biosorption is an alternative approach to eliminating heavy metals from water that involves employing eco-friendly and cost-effective biomass. This review is focused on the heavy metal ions contamination in the water, biosorption methods for heavy metal removal and mathematical modeling to explain the behaviour of heavy metal adsorption. This review can be helpful to the researchers to design wastewater treatment plants for sustainable wastewater treatment.

Challenges of biomedical research collaboration in India: Perceptions of Indian and international researchers.

Biomedical research collaborations are to be contextualized in the larger global health agenda which also opens up new information pathways, expands research networks, and brings additional resources. A qualitative inquiry was employed to understand the perceived benefits and challenges of research collaborations by biomedical scientists from India (Global South [GS] country) and the Global North (GN). In-depth interviews were conducted with 47 biomedical scientists from India and 06 from the GN. The data was analyzed using the grounded theory approach. Complementarity of skills and resources, access to funds, improved quality of work, an opportunity to conduct multi-centric studies, development of collaborative networks, better and larger number of publications, mutual learning, opportunity to work with credible researchers, address common interests, leverage interpersonal and trusted relationships and larger societal good were some of the critical factors for eagerness of participants in joint scientific endeavors. However, the challenging aspects of dissent and disagreements were the power imbalance between the collaborators, the development of a trust deficit, and local administrative issues. The challenges reported in the current publication, also echoed in several previous publications can be surmounted and negotiated amicably when the rules of the game, law of the land, sharing of the credits, and interest of the collaborating parties are addressed and agreed up in a fair and just manner before the start of the collaboration. Overall biomedical partnerships are complex collaborations with its challenges, the processes are dynamic and outcomes are emergent. This requires constant and proactive evolution of the preparation, implementation and sustainability of the collaborative efforts be it national or international.

Acute encephalitis syndrome surveillance, Kushinagar district, Uttar Pradesh, India, 2011-2012.

In India, quality surveillance for acute encephalitis syndrome (AES), including laboratory testing, is necessary for understanding the epidemiology and etiology of AES, planning interventions, and developing policy. We reviewed AES surveillance data for January 2011-June 2012 from Kushinagar District, Uttar Pradesh, India. Data were cleaned, incidence was determined, and demographic characteristics of cases and data quality were analyzed. A total of 812 AES case records were identified, of which 23% had illogical entries. AES incidence was highest among boys<6 years of age, and cases peaked during monsoon season. Records for laboratory results (available for Japanese encephalitis but not AES) and vaccination history were largely incomplete, so inferences about the epidemiology and etiology of AES could not be made. The low-quality AES/Japanese encephalitis surveillance data in this area provide little evidence to support development of prevention and control measures, estimate the effect of interventions, and avoid the waste of public health resources.

Hepatitis C virus seroprevalence among patients enrolled at the opioid substitution therapy center in Bihar: A cross-sectional study.

BACKGROUND AND AIM: Hepatitis C virus (HCV) infection poses a major public health challenge in Indian settings due to its huge population and easy transmissibility of HCV among individuals who inject drugs (PWID, which is increasing in India). The National AIDS Control Organization (NACO), India has started the Opioid Substitution Therapy (OST) centers to improve the health status of opioid dependent PWID and prevent the spread of HIV/AIDS among them. We conducted a cross-sectional study to find out the HCV sero-positive status and associated determinants in patients attending the OST centre in the ICMR-RMRIMS, Patna. MATERIALS AND METHODS: We utilized the routinely collected (as a part of the National AIDS Control Program) and de-identified data from the OST center from 2014 to 2022 (N = 268). We abstracted the information for exposure variables (such as socio-demographic features and drug history) and outcome variable (HCV serostatus). The association of exposure variables with HCV serostatus was examined using robust Poisson regression. RESULTS: All the enrolled participants were male and the prevalence of HCV seropositivity was 28% [95% confidence interval (CI): 22.7% - 33.8%)]. There was a rising prevalence of HCV seropositivity with number of years of injection use (p-trend <0.001) and age (p-trend 0.025). Approximately, 6.3% participants were injecting drugs for >10 years and reported the maximum prevalence of HCV seropositivity (47.1%, 95% CI: 23.3%-70.8%). In adjusted analyses, being employed compared to unemployed patients [adjusted prevalence ratio (aPR) = 0.59; 95% CI: 0.38-0.89]; graduated patients compared to illiterate patients [aPR = 0.11; 95% CI: 0.02-0.78]; and patients with education up to higher secondary compared to illiterate patients [aPR = 0.64; 95% CI: 0.43-0.94] had significantly lesser HCV seropositivity. A-one year increase in injection use [aPR = 1.07; 95% CI: 1.04-1.10] was associated with 7% higher prevalence of HCV seropositivity. CONCLUSIONS: In this OST center-based study of 268 PWIDs residing in Patna, ~28% of patients were HCV seropositive, which was positively associated with years of injection use, unemployment, and illiteracy. Our findings suggest that OST centers offer an opportunity to reach a high-risk difficult to reach group for HCV infection and thus support the notion of integrating HCV care into the OST or de-addiction centres.

Arsenic exposure to mouse visceral leishmaniasis model through their drinking water linked to the disease exacerbation via modulation in host protective immunity: a preclinical study.

A large body of evidence has shown a direct link between arsenic exposure and drug resistance to Leishmania parasites against antimonial preparations in visceral leishmaniasis (VL) hyper-endemic regions, especially in India and its sub-continent. However, the implicated roles of arsenic on the VL host, pathophysiological changes, and immune function have not yet been clarified, particularly at the reported concentration of arsenic in the VL hyper-endemic area of Bihar, India. Herein, we exposed the mouse VL model to arsenic (0.5 mg/L to 2 mg/L) through their drinking water and analyzed its effect on T cells proliferation, Th1/Th2-mediators, MAPK signaling cascade, and parasite load in preclinical models. Coherently, the parasite count in Giemsa stained spleen imprint has been investigated and found significant positive associations with levels of arsenic exposure. The liver and kidney function tests (AST, ALT, ALP, BUN, Creatinine, Urea, etc.) are apparent to hepatonephric toxicity in arsenic exposed VL mice compared to unexposed. This observation appears to be consistent with the up-regulated expression of immune regulatory Th2 mediators (IL-4, IL-10, TGF-ß) and down-regulated expression of Th1 mediators (IL-12, IFN-γ, TNF-α) with a suppressed leishmanicidal function of macrophage (ROS, NO, iNOS). We also established that arsenic exposure modulated the host ERK-1/2 and p38 MAPK signaling cascade, limited T lymphocyte proliferation, and a lower IgG2a/IgG1 ratio to favor the Leishmania parasite survival inside the host. This study suggests that the contorted Th1-subtype and exacerbated Th2-subtype immune responses are involved in the increased susceptibility and pathogenesis of Leishmania parasite among subjects/individuals regularly exposed to arsenic.

Barriers in reaching new-borns and infants through home visits: A qualitative study using nexus planning framework.

Background: Home visitation has emerged as an effective model to provide high-quality care during pregnancy, childbirth, and post-natal period and improve the health outcomes of mother- new born dyad. This 3600 assessment documented the constraints faced by the community health workers (known as the Accredited Social Health Activists, ASHAs) to accomplish home visitation and deliver quality services in a poor-performing district and co-created the strategies to overcome these using a nexus planning approach. Methods: The study was conducted in the Raisen district of Madhya Pradesh, India. The grounded theory approach was applied for data collection and analysis using in-depth interviews, and focus group discussions with stakeholders representing from health system (including the ASHAs) and the community (rural population). A key group of diverse stakeholders were convened to utilize the nexus planning five domain framework (social-cultural, educational, organizational, economic, and physical) to prioritize the challenges and co-create solutions for improving the home visitation program performance and quality. The nexus framework provides a systemic lens for evaluating the success of the ASHAs home visitation program. Results: The societal (caste and economic discrimination), and personal (domestic responsibilities and cultural constraints of working in the village milieu) issues emerged as the key constraints for completing home visits. The programmatic gaps in imparting technical knowledge and skills, mentoring system, communication abilities, and unsatisfactory remuneration system were the other barriers to the credibility of the services. The nexus planning framework emphasized that each of the above factors/domains is intertwined and affects or depends on each other for home-based maternal and newborn care services delivered with quality through the ASHAs. Conclusion: The home visitation program services, quality and impact can be enhanced by addressing the social-cultural, organizational, educational, economic, and physical nexus domains with concurrent efforts for skill and confidence enhancement of the ASHAs and their credibility.

Non-health determinants of health and healthcare in Delhi.

With only 0.05% of the total area of the country, Delhi is home to 1.34% of India's population. This creates enormous pressure on natural and man-made resources, and generates situations in which non-health determinants may take precedence over the conventional determinants directly associated with health and healthcare. With the rising advocacy on social determinants of health, several of these factors may rightly seem to be part of the broader territory of health-related variables, and in that context, they may be designated as conventional non-medical determinants. We discuss some more visible domains, such as demography, migration and floating population; the physical and biological environment; economic determinants; social determinants; legislation and enforcement, and underscore some less explored yet critical domains of the determinants related to culture, governance and politics. What emerges as a compelling reality is a wide differential in physical environment, urban planning and access to infrastructural inputs between the privileged and marginalized areas of Delhi. Inequities in physical quality of life are so gross that even a value-neutral, official narrative betrays them helplessly. We propose actionable areas to address some of the pressing non-health determinants of health and healthcare.

Impact of health education and condom distribution on incidence of RTI/STI among the newly married urban poor women in Delhi.

This study was carried out to find out the impact of a specially designed preventive intervention on menstrual and sexual hygiene practices and incidence of RTI/STI among the newly married women. A community based intervention study with controls was conducted in two resettlement colonies of Delhi. Total 74 subjects in intervention group and 71 subjects in the control group were studied. Each subject was followed up for 9 months every three monthly. The intervention package included education about menstrual and sexual hygiene, RTI/STIs and contraceptive usage, and packets of condoms. RTI/STI was diagnosed using syndromic approach. Only 2 and 8 subjects in the intervention and control group respectively used condoms (p>0.05 after adjustment). Practice of washing genitals improved in the intervention group (p<0.05 both with and without adjustment). 19 (25.68%) women in intervention and 22 (30.99%) in the control group (p=0.478) reported RTI/STI symptoms during study period; after adjusting for other variables OR=0.37 (p=0.007). 57.89% of RTI/STI patients consulted doctor in intervention group as compared to 18.18% in control group (p<0.05). Increasing awareness and providing intervention at the very beginning of sexual life of newly married women can modify some of the high risk behaviors and thus reduce the risk of acquiring RTI/STIs.

Reproductive health of newly married women residing in a resettlement colony of Delhi: a longitudinal study.

During the period immediately after marriage, women are neither assessed for their reproductive health nor given any intervention for the same. A community based longitudinal study was done to assess the status of reproductive health of newly married women in which 71 newly married women were followed for 9 months. Mean age at marriage was 20.24 (19.74-20.74) years. 76.06% were anemic. With time, proportion reporting menstrual complaints and RTI symptoms increased significantly (P<0.05). 29 (40.85%) reported menstrual complaints and 22 (30.99%) RTI symptoms. Only 14 (19.72%) subjects used contraceptive methods. 79% conceived within 9 months of marriage. Only 25% pregnancies got registered in first trimester. Reproductive and nutritional status of the newly married women was unsatisfactory.

Pandemic influenza: imminent threat, preparedness and the divided globe.

With generic consensus on certainty of an impending influenza pandemic, concerns are mounting about its devastating global impact. Preparedness and preventive approaches adopted by the nation states are polarised between resource rich and resource challenged countries. India has, rightly, taken a middle path. It seems that the non-pharmaceutical interventions would be the only preventive modality available in large parts of world. Production of any pandemic vaccine would take a minimum of 6 months after isolation of novel virus, and antivirals may not be available where they are required most. Efforts to create a universal pool of resources and stockpiles of antivirals, antibiotics and vaccines for use in first affected countries need to be strengthened with urgency.

Association of Air Pollution and Lung Function of Young Adult Females in New Delhi.

BACKGROUND: Lung function tests reflect the underlying physiological condition of the airways and the alveoli. Therefore, they help to evaluate the respiratory health of an individual. Lung functions are compromised far before appearance of the signs and symptoms of chronic respiratory diseases. Air pollution adversely affects lung function. Exposure to sources of pollution differ between men and women due to commuting and smoking habits. The present study was carried out in Delhi to assess the association of exposure to air pollution sources with lung function of young adult females, as this younger age group is expected to have a different exposure profile than older women. METHODS: The present study was conducted on the campus of a central university in Delhi among 18- to 25-year old females (n=200). A pre-tested, close-ended and interviewer-administered questionnaire was used that consisted of information on sociodemographic details of the participants and self-reported exposure to air pollution sources at the residence of participants, during their commute to and from college, and at school. Both active and passive smoking status were recorded. Lung function was assessed using a digital spirometer. RESULTS: A significant association was observed between percentage of predicted value of forced expiratory volume in one second (FEV1)/forced vital capacity (FVC) and peak expiratory flow (PEF) with the number of years the participant had resided in Delhi (p<0.05). Forced vital capacity and FEV1 of those using closed transport methods such as car, metro, and air-conditioned (A/C) bus were significantly better than those who used open transport methods such as non-A/C bus and scooter (p<0.05). Forced vital capacity and FEV1 were significantly decreased among those who had a smoke-producing factory in the vicinity of their residence (p<0.05). A significant decrease in FVC and FEV1 was observed among active smokers and among those who were exposed to passive smoking by family members in comparison to those who were not exposed (p<0.05). CONCLUSIONS: The results of the present study suggest that air pollution exposure plays a role in determining the lung function profile of young adult females. This study provides baseline data on lung function of young adult females which could be used in future longitudinal cohort studies. PARTICIPANT CONSENT: Obtained. ETHICS APPROVAL: The study was approved by the Institutional Ethics Committee of University College of Medical Sciences. COMPETING INTERESTS: The authors declare no completing financial interests.

Are pregnant women also vulnerable to domestic violence? A community based enquiry for prevalence and predictors of domestic violence among pregnant women.

AIM: To generate local evidence to fill up the knowledge gap about the domestic violence faced by the antenatal females. OBJECTIVES: To screen for domestic violence in antenatal females. To explore association, if any, with socio-demographic and pregnancy related attributes among antenatal females of an urbanized village of Delhi. MATERIALS AND METHODS: Socio demographic details and pregnancy related attributes and HITS (Hurt, Insult, Threaten, Scream) questionnaire for screening domestic violence was used on 165 pregnant females in a community based setting. RESULTS: 23% of pregnant women were screened positive for domestic violence. Physical hurt was present among 60% of victims of domestic violence. The predictors for domestic violence among pregnant women as derived from logistic regression were - educational status of head of the family/husband, substance abuse by husband and history of previous abortions. CONCLUSION AND RECOMMENDATIONS: More emphasis should be given on well being of the pregnant women who are victims of domestic violence. The policy makers and program managers should integrate social welfare schemes with the RCH program and all levels of health care functionaries should be sensitized about dealing with victims of domestic violence. Laws should be implemented effectively against perpetrators of domestic violence and more importantly females should be made aware of such laws and should be motivated to report it to the legal authorities and not to take up violence for granted.

Modulation of the immune response and infection pattern to Leishmania donovani in visceral leishmaniasis due to arsenic exposure: An in vitro study.

The arsenic contamination of ground water in visceral leishmaniasis (VL) endemic areas in Bihar, India leads to human exposure through drinking water. Possibly, the consumed arsenic (As) accumulates in the tissues of VL patients, who subsequently internalize intracellular amastigotes to confer resistance against chemotherapy to the parasite, leading to modulation in the host's immune response. This hypothesis appears to be consistent with the in vitro findings that in arsenic-exposed parasites, the mitochondrial membrane potential became depolarized, whereas the reduced thiol and lactate production was overexpressed with enhanced glucose consumption; therefore, the reduced thiol possibly supports an immunosuppressive state in the host cells. This observation was well supported by the down-regulated expression of pro-inflammatory cytokines (IL-2, IL-12, IFN-γ, and TNF-α) with a suppressed anti-leishmanial function of macrophage (NO, ROS). In contrast, the pathophysiological mechanism of VL has received ample support by the promotion of Th2 cytokines (IL-4 and IL-10) in the presence of arsenic-exposed Leishmania parasites (LdAS). Dysfunction of mitochondria and the overexpression of lactate production raise the possibility of the Warburg effect being operative through the up-regulation of glucose consumption by parasites to enhance the energy production, possibly augmenting virulence. Therefore, we surmise from our data that arsenic exposure to Leishmania donovani modulates the immune response and infection pattern by impairing parasite function, which may affect the anti-leishmanial effect in VL.