Samiksha Singh

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BACKGROUND Targeted interventions (TIs) have been a major strategy for HIV prevention in India. We evaluated the impact of TIs on HIV prevalence in high HIV prevalence southern states (Tamil Nadu, Karnataka, Andhra Pradesh and Maharashtra). METHODS A quasi-experimental approach was used to retrospectively compare changes in HIV prevalence according to the(More)
Heavy metal contamination of soil and water causing toxicity/stress has become one important constraint to crop productivity and quality. This situation has further worsened by the increasing population growth and inherent food demand. It has been reported in several studies that counterbalancing toxicity due to heavy metal requires complex mechanisms at(More)
The present study is aimed to investigate whether ascorbate-glutathione cycle (AsA-GSH cycle) or thiol metabolism is involved in the regulation of arsenate (AsV)-induced oxidative stress and tolerance in ridged Luffa seedlings. AsV significantly (p < 0.05) declined the growth of Luffa seedlings which was accompanied by the enhanced accumulation of As. The(More)
Seed priming is a crucial method to induce tolerance capabilities in plants against various abiotic stresses. Seed priming is associated with an induction of number of physiological and biochemical changes in plants by the treatment of natural and/or synthetic compounds to the seeds before their germination. The aim of this study was to investigate whether(More)
BACKGROUND Evidence from high income countries shows mothers who are supplemented with folic acid in their periconceptional period and early pregnancy have significantly reduced adverse outcomes like birth defects. However, in India there is a paucity of data on association of birth defects and folic acid supplementation. We identified a few important(More)
Emergency obstetric care (EmOC) within primary health care systems requires a linked referral system to be effective in reducing maternal death. This systematic review aimed to summarize evidence on the proportion of referrals between institutions during pregnancy and delivery, and the factors affecting referrals, in India. We searched 6 electronic(More)
BACKGROUND The transport of pregnant women to an appropriate health facility plays a pivotal role in preventing maternal deaths. In India, state-run call-centre based ambulance systems ('108' and '102'), along with district-level Janani Express and local community-based innovations, provide transport services for pregnant women. We studied the role of '108'(More)
Reactive oxygen species (ROS) are generated inevitably in the redox reactions of plants, including respiration and photosynthesis. In earlier studies, ROS were considered as toxic by-products of aerobic pathways of the metabolism. But in recent years, concept about ROS has changed because they also participate in developmental processes of plants by acting(More)
Modern agriculture is facing significant challenges due to the high complexity of field conditions caused not only by currently ongoing global climatic change but also by stress combinations. Recent research is focusing on the molecular mechanisms controlling stress responses in plants. Many efforts have been made to uncover the complex but well-coordinated(More)
The critical source of information in plants is light, which is perceived by receptors present in plants and animals. Receptors present in plant and animal system regulate important processes, and knowing the chromophores and signalling domains for each receptor could pave a way to trace out links between these receptors. The signalling mechanism for each(More)