Can Dermoscopy and Ultrasonography be Considered a Prognostic Tool in Management of Psoriasis?

Background: Dermoscopy can reliably predict the diagnosis of plaque psoriasis. Ultrasonography has been increasingly used in dermatology in inflammatory diseases like psoriasis as a tool for evaluation. Hence, this study was done to evaluate the role of dermoscopy and ultrasonography as prognostic aid in plaque psoriasis.

The low copy nuclear region, RPB2 as a novel DNA barcode region for species identification in the rattan genus (Arecaceae).

Taxonomic complexities, like environmental plasticity and homoplasy, make precise identification challenging in , the genus of spiny climbing palms of the subfamily Calamoideae (Arecaceae). In the present study, the species discriminatory power of twelve potential DNA barcode regions (L, K, A-H, CBK-IF-H, Z-M, ITS1, ITS2, PRK, and RPB2) were evaluated in 21 species of from the Western Ghats region of India, using distance, tree, and similarity based statistical methods. Except for the low copy nuclear region, RPB2, none of the tested plastid loci or nuclear loci ITS, either singly or in combinations, could discriminate all the species of due to low substitution rate of plastid regions and multiple copies of ITS respectively.

DNA barcoding as a valuable molecular tool for the certification of planting materials in bamboo.

DNA barcodes developed for selected commercially important bamboo species can be utilized for the certification of planting stock in bamboo nurseries in absence of discriminatory features at the juvenile stage. Planting materials such as micropropagated plantlets, rhizome transplants and culm cuttings, generated at nursery level are directly procured for establishment of commercial plantations without any further verification Very often misidentification and mixing up occur at nursery level and the error is not discovered until several years have passed. The present study evaluated the potentiality of seven Consortium for Barcode of Life (CBOL) recommended standard DNA barcode regions in commercially important bamboo species of India.

Simultaneous influence of erythrocyte deformability and macromolecules in the medium on erythrocyte aggregation: a kinetic study by a laser scattering technique.

The aggregation and sedimentation kinetics of human erythrocytes was studied by modifying the cellular properties and medium compositions simultaneously. Dextrans of average molecular weight 70400 and 494000 were used to provide suspending medium modifications, while diamide (diazene dicarboxylic acid bis(N,N-dimethylamide)) was used to alter the membrane structural properties. Laser scattering method was employed for this study, and it was compared with a kinetic method combined with a low-shear rheoscope and an image analyzer.

Optical & rheological parameters of blood & their application to cardiovascular diseases.

As haemorheological factors such as erythrocyte deformability and blood viscosity are important in maintaining normal blood circulation, these parameters were measured by Hemorheometer and Cone-Plate Microviscometer respectively. He-Ne laser light and photodiode detector assembly was used to study the optical characteristics of blood samples from normal individuals and patients with various diseases. Both rheological and optical parameters were found to vary depending on the status of the blood samples.

Simultaneous determination of hematocrit, aggregate size and sedimentation velocity by He-Ne laser scattering.

A method has been developed to study erythrocyte aggregation parameters based on He-Ne laser light scattering. Laser light is passed through a well mixed sample of blood and the forward scattered light intensity is recorded continuously. The orientation of erythrocytes, formation of aggregates and their sedimentation under the gravitational field produces a variation in scattered light intensity.

A new laser photometric technique for the measurement of erythrocyte aggregation and sedimentation kinetics.

The aggregation kinetics of erythrocytes is studied by using laser light scattering. Laser light is passed through a well mixed sample of blood and the forward-scattered light intensity is recorded continuously. During the process of aggregation and sedimentation under a gravitational field, erythrocytes are subjected to different orientations.

Assessment of the accuracy of color Doppler flow mapping by digital image analysis.

An in vitro steady flow experiment was performed in order to test the accuracy of velocity measurements obtained through color Doppler flow mapping (CDFM). Using the American Society of Echocardiography (ASE) flow phantom, low (maximum velocity = 60 cm/sec), medium (maximum velocity = 300 cm/sec) and high (maximum velocity = 600 cm/sec) speed accelerating flow fields, in which multiple aliases were visible, were imaged. A fully automatic computer algorithm was used to unwrap the aliases and to convert the CDFM to digital velocity.

Cardiac motion can alter proximal isovelocity surface area calculations of regurgitant flow.

Objectives: This study addressed the hypothesis that motion of the surface containing a regurgitant orifice relative to the Doppler ultrasound transducer can cause differences between actual flow rate and calculations based on the proximal flow convergence technique.

Background: In vitro studies quantitating regurgitant flow rate by proximal flow convergence have been limited to stationary orifices. Clinically, however, valve leaflets generally move relative to the ultrasound transducer during the cardiac cycle and can move at velocities important relative to the measured color aliasing velocities.

Plantlet production through high frequency somatic embryogenesis in long term cultures ofEucalyptus citriodora.

A highly embryogenic culture ofEucalyptus citriodora was obtained by repetitive embryogenesis from somatic embryos cultured in the dark on a medium containing 500 mg/l each of glutamine and casein hydrolysate, 30 g/l of sucrose and 5 mg/l of 1-napthaleneacetic acid. Cultures retained morphogenetic ability for upto 36 months when maintained at 27°C by subculture at intervals of 4-5 weeks. The subculture period could be extended beyond 9 months if cultures were incubated at 10°C.

Mechanism of erythrocyte aggregate formation in presence of magnetic field and dextrans as analyzed by laser light scattering.

The mechanism of erythrocyte aggregation has been studied in normal plasma, dextran 40 and dextran 70 suspensions in presence and absence of magnetic field at a concentration of 5 percent by laser light scattering. The inhomogeneous magnetic field enhances the aggregating tendency of normal erythrocytes. The growth of aggregates due to dextran 70 is enhanced in presence of magnetic field.

In vitro plantlet formation by organogenesis in E. camaldulensis and by somatic embryogenesis in Eucalyptus citriodora.

Adventitious shoots were formed through callus on leaf explants of Eucalyptus camaldulensis Dehnh. (River red gum) taken from shoot cultures of mature trees. Callus formed in dark on a medium containing 1 g/l casein hydrolysate, 3 mg/l 1-naphthaleneacetic acid, 0.