Clinico-dermatologic patterns of Paederus dermatitis in a teaching hospital, South India.

Background: Paederus dermatitis (PD) is common skin condition occurring in South India caused due to contact with Rove beetle. It is often misdiagnosed due to wide difference in its presentation. The aim of this study was to describe the clinical, sociodemographic, and environmental condition of patient's presenting with PD.

Chitosan mediated gold nanoparticles against pathogenic bacteria, fungal strains and MCF-7 cancer cells.

In the present study, we report cytotoxic and antimicrobial potential of gold nanoparticles (Au NPs) synthesized using chitosan derived from squilla shell wastes. Here we adopted ecofriendly approach for the synthesis of Au NPs and characterized them using UV-visible spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, atomic force microscopy, transmission electron microscopy (TEM) and dynamic light scattering (DLS) methods. The UV-visible spectroscopic analysis revealed an absorption peak at 529 nm, which represents the Surface Plasmon Resonance of Au NPs.

First record of sp. an ectoparasitic isopod isolated from the coral reef fish, collected from the Gulf of Mannar region, southeast coast of India.

An ectoparasitic isopod, sp. was found in the Gill chambers of collected from the Gulf of Mannar region, Southeast coast of India. The present study signifies the new record of sp.

The cytotoxicity and cellular stress by temperature-fabricated polyshaped gold nanoparticles using marine macroalgae, Padina gymnospora.

Bioreduction of metal ions for the synthesis of stable nanoparticles (NPs) in physiological environment has been a great challenge in the field of nanotechnology and its application. In the present study, well-defined biofunctionalized gold nanoparticles (AuNPs) were developed following a biomimetic approach for an enhanced anticancer activity. The fucoxanthins-capped crystalline AuNPs showed a particle size of 14 nm.

Cadmium and copper toxicity in three marine macroalgae: evaluation of the biochemical responses and DNA damage.

Marine macroalgae have evolved a different mechanism to maintain physiological concentrations of essential metal ions and non-essential metals. The objective of the present work was to evaluate the antioxidant response and DNA damage of copper and cadmium ions in three halophytes, namely, Acanthophora spicifera, Chaetomorpha antennina, and Ulva reticulata. Accumulation of copper was significantly higher (P < 0.

Loudness perception affected by early age hearing loss.

Tinnitus and hyperacusis, commonly seen in adults, are also reported in children. Although clinical studies found children with tinnitus and hyperacusis often suffered from recurrent otitis media, there is no direct study on how temporary hearing loss in the early age affects the sound loudness perception. In this study, sound loudness changes in rats affected by perforation of the tympanic membranes (TM) have been studied using an operant conditioning based behavioral task.

Cancerous cell targeting and destruction using pH stabilized amperometric bioconjugated gold nanoparticles from marine macroalgae, Padina gymnospora.

The main aim of this study was, using biomechanistic approach, to synthesize and characterize amperometric stable gold nanoparticles (AuNPs) under different pH conditions using UV Spec, dynamic light scattering and TEM with energy dispersive X-ray analysis. The biomolecules involved in conjugation and reduction were further characterized by Fourier transform infrared analysis. The pH stabilized nanoparticles were studied to determine the functional and molecular mechanism of cell death on liver cancer (HepG2) cell line and gastric cancer (YCC3) cell line.

Biochemical and genotoxic response of naphthalene to fingerlings of milkfish Chanos chanos.

The present study investigated the acute toxicity, sub-lethal toxicity and biochemical response of naphthalene in fingerlings of milkfish Chanos chanos. The 96 h acute toxicity LC50 values for C. chanos exposed to naphthalene was 5.

Identification of DNA damage in marine fish Therapon jarbua by comet assay technique.

The marine fish Therapon jarbua was exposed to acute concentration of mercuric chloride (HgCl2). In static acute toxicity bioassays at 24, 48, 72 and 96 hr LC50 values were estimated for each concentrations such as control, 2, 1, 0.5, 0.

Toxicity, feeding rate and growth rate response to sub-lethal concentrations of anthracene and benzo [a] pyrene in milkfish Chanos chanos (Forskkal).

The feeding rate, growth rate and gross conversion efficiency were studied in milkfish Chanos chanos for 28 days of exposure to sub-lethal concentrations of anthracene (1.00, 2.00, 3.

Hyperexcitability of inferior colliculus neurons caused by acute noise exposure.

Noise exposure is one of the most common causes of hearing loss. Recent studies found that noise exposure-induced cochlear damage may change the excitability and tonotopic organization of the central auditory system (CAS). This plasticity was suspected to be related to tinnitus and hyperacusis.

A study of proteotoxicity and genotoxicity induced by the pesticide and fungicide on marine invertebrate (Donax faba).

Chlorpyrifos (CPF) and carbendazim (CBZ) are widely used pesticide and fungicide in India. The 96 h LC(50) values of chlorpyrifos and carbendazim for the marine invertebrate Donax faba, were 247.72 μg L(-1) and 200.

Metallic silver nanoparticle: a therapeutic agent in combination with antifungal drug against human fungal pathogen.

Silver nanoparticles (Ag-NPs) are known to have inhibitory and fungicidal effects. Resistance against fungal infection has emerged as a major health problem in recent years, which needs great and immediate concern. Here, we report the extracellular biological synthesis of silver nanoparticles through a simple green route approach using a marine mangrove (Rhizophora mucronata) and silver nitrate.

Biosynthesis of silver nanoparticles by using mangrove plant extract and their potential mosquito larvicidal property.

Objective: To identify the larvicidal activities of silver nano particles synthesised with Rhizophora mucronata (R. mucronata) leaf extract against the larvae of Aedes aegypti (Ae. aegypti) and Culex quinquefasciatus (Cx.

Biochemical response of anthracene and benzo [a] pyrene in milkfish Chanos chanos.

Polycyclic aromatic hydrocarbons (PAHs) are common toxic pollutants found in the aquatic environment, and the assessment of their impact on biota is of considerable concern. The aim of the present research was to study the acute toxicity, bioaccumulation and biochemical response of milkfish Chanos chanos (Forsskal) to two selected PAHs: anthracene and benzo [a] pyrene. Acute toxicity test results were evaluated by the Probit analysis method and 96h LC(50) values for C.

Early age conductive hearing loss causes audiogenic seizure and hyperacusis behavior.

Recent clinical reports found a high incidence of recurrent otitis media in children suffering hyperacusis, a marked intolerance to an otherwise ordinary environmental sound. However, it is unclear whether the conductive hearing loss caused by otitis media in early age will affect sound tolerance later in life. Thus, we have tested the effects of tympanic membrane (TM) damage at an early age on sound perception development in rats.

Genotoxic effects of profenofos on the marine fish, Therapon jarbua.

Profenofos (EC(50)) is a persistent and toxic organophosphorus insecticide. Animals get exposed to profenofos via food and water. The present study was designed to explore the genotoxic effect of profenofos in the marine fish.

Accumulation of heavy metals in some species of lichens in south Tamilnadu, India.

Lichens are lower group of plants. They accumulate heavy metals and have been used as bio-indicators in pollution monitoring. Nine lichen species were collected from urban, rural and hilly areas in the southern part of Tamilnadu.

Impact of distillery effluent on carbohydrate metabolism of freshwater fish, Cyprinus carpio.

The impact of distillery effluent on carbohydrate metabolism of Cyprinus carpio was studied at different days during exposure (7, 14, and 21 days) in the ambient temperature of 28 +/- 1 degrees C. Oxygen consumption in fish decreased with increasing effluent concentrations as well as duration of exposure. Effluent concentrations and exposure durations (days) had a significant effect on oxygen consumption of tested fish (p < 0.

Charcot joint of the spine, a cause of autonomic dysreflexia in spinal cord injured patients.

Study Design: Case report of two subjects.

Objective: Charcot joints of the spine as a cause of Autonomic Dysreflexia in spinal cord lesions.

Setting: Stoke Mandeville Hospital, UK.

Bioenergetics of acclimation to permethrin (NRDC-143) by rainbow trout.

Metabolic rates associated with sustained, prolonged and critical swimming speeds were examined in 10 g trout exposed to 5% 96 hr LC50 (0.75 microgram X l-1) and 10% 96 hr LC50 (1.50 micrograms X l-1) at 12 degrees C.