1.Aedes aegypti container preference for oviposition and its possible implications for dengue vector surveillance in Delhi, India
Pooja PRASAD ; Suman LATA ; Sanjeev Kumar GUPTA ; Pawan KUMAR ; Rekha SAXENA ; Deepak Kumar ARYA ; Himmat SINGH
Epidemiology and Health 2023;45(1):e2023073-
OBJECTIVES:
Dengue is a mosquito-borne viral disease globally transmitted by Aedes aegypti. The most effective method to prevent the transmission of the disease is proficient vector control. Understanding the breeding behaviour of the responsible vectors is very pertinent in this regard; therefore, the present study was conducted to understand Ae. aegypti behaviour regarding the selection of containers for oviposition in the megacity of Delhi.
METHODS:
A household survey in different localities within Delhi was carried out during 2018-2019. All available containers were inspected for the presence of immature Ae. aegypti. In entomological surveillance, the ovipositional preference of Aedes was computed using the breeding preference ratio, container index in the field, and laboratory settings, and associations of dengue cases with monthly variation in environmental factors and container type were also calculated.
RESULTS:
The household larval survey in 40 localities showed that 40% of 27,776 water-holding containers in 3,400 houses were plastic, followed by overhead tanks (26.2%), and coolers (12.1%). The most preferred breeding habitat was clay pots (9.3%), followed by metallic containers (8.5%) and solid waste (7.1%). A laboratory-based study showed that Aedes preferred clay containers (81.8%) over 4 other types of containers (plastic, paper, metal, and glass).
CONCLUSIONS
The present study provides a rationale for using clay containers as a possible surveillance tool (ovitraps) or as a vector control tool. This information might aid researchers in developing novel traps and targeting preferred containers for larval control activities during transmission and non-transmission seasons.
2.QTL analysis for some quantitative traits in bread wheat.
Kumar Gupta PUSHPENDRA ; Singh Balyan HARINDRA ; Laxminarayan Kulwal PAWAN ; Kumar NEERAJ ; Kumar AJAY ; Rouf Mir REYAZUL ; Mohan AMITA ; Kumar JITENDRA
Journal of Zhejiang University. Science. B 2007;8(11):807-814
Quantitative trait loci (QTL) analysis was conducted in bread wheat for 14 important traits utilizing data from four different mapping populations involving different approaches of QTL analysis. Analysis for grain protein content (GPC) suggested that the major part of genetic variation for this trait is due to environmental interactions. In contrast, pre-harvest sprouting tolerance (PHST) was controlled mainly by main effect QTL (M-QTL) with very little genetic variation due to environmental interactions; a major QTL for PHST was detected on chromosome arm 3AL. For grain weight, one QTL each was detected on chromosome arms 1AS, 2BS and 7AS. QTL for 4 growth related traits taken together detected by different methods ranged from 37 to 40; nine QTL that were detected by single-locus as well as two-locus analyses were all M-QTL. Similarly, single-locus and two-locus QTL analyses for seven yield and yield contributing traits in two populations respectively allowed detection of 25 and 50 QTL by composite interval mapping (CIM), 16 and 25 QTL by multiple-trait composite interval mapping (MCIM) and 38 and 37 QTL by two-locus analyses. These studies should prove useful in QTL cloning and wheat improvement through marker aided selection.
Bread
;
Chromosome Mapping
;
Quantitative Trait Loci
;
genetics
;
Triticum
;
genetics
;
growth & development
3.Delayed Spontaneous Thrombosis of Neglected Direct Carotid-Cavernous Fistula: A Case Report
Sarbesh TIWARI ; Pawan Kumar GARG ; Pushpinder Singh KHERA ; Santosh Babu K.B ; Taruna YADAV ; Binit SUREKA
Neurointervention 2020;15(2):96-100
Direct carotid-cavernous fistula (CCF) refers to direct communication between the cavernous portion of the internal carotid artery (ICA) and the cavernous sinus due to rent in the ICA, most commonly secondary to trauma. These are generally high-flow fistula and rarely resolve spontaneously. We report a case of a young male who developed features of direct CCF after trauma, was denied any treatment for 4 years, and then presented with spontaneous thrombosis of the fistula and a residual large pseudoaneurysm of the cavernous segment of the right ICA, which was subsequently managed with parent vessel occlusion.
5.Ethnomedicinal, phytochemical and pharmacological updates on Hygrophila auriculata (Schum.) Hiene: an overview.
Neeraj K SETHIYA ; Nasir M AHMED ; Raeesh M SHEKH ; Vivek KUMAR ; Pawan Kumar SINGH ; Vipin KUMAR
Journal of Integrative Medicine 2018;16(5):299-311
This article explores the most recent evidence-based information on ethnomedicinal, phytochemical and pharmacological understanding of Hygrophila auriculata for the treatment of various diseases and health conditions. Various ethnomedicinal writings suggest the use of the plant or its parts for the treatment of jaundice, oedema, gastrointestinal ailments, diarrhoea, dysentery, urinogenital disorder, gall stones, urinary calculi, kidney stone, leucorrhoea, rheumatism, tuberculosis, anaemia, body pain, constipation, skin disease, and as an aphrodisiac. The plant has been reported to contain flavonoids (apigenin, luteolin, ellagic acid, gallic acid and quercetin), alkaloids (asteracanthine and asteracanthicine), triterpenes (lupeol, lupenone, hentricontane and betulin), sterols (stigmasterol and asterol), minerals, amino acids, fatty acids, aliphatic esters and essential oils. Extracts and bioactive compounds from the plant have been found to possess antimicrobial, anthelmintic, antitermite, nephroprotective, hepatoprotective, central nervous system protective, antitumour, antidiabetic, anticataract, antioxidant, haematopoietic, diuretic, antinociceptive, anti-inflammatory, antipyretic, antimotility, aphrodisiac, neuroprotection, anti-endotoxin and anti-urolithiatic activities. For this paper, we reviewed patents, clinical studies, analytical studies and marketed formulations from the earliest found examples from 1887 to the end of 2017.
Acanthaceae
;
chemistry
;
Anti-Infective Agents
;
Anti-Inflammatory Agents
;
Antioxidants
;
Ethnopharmacology
;
Humans
;
Medicine, Traditional
;
Phytochemicals
;
pharmacology
;
therapeutic use
;
Phytotherapy
;
Plant Extracts
;
pharmacology
;
therapeutic use
;
Protective Agents