Comparative analysis of an epoxy resin-based and a premixed calcium silicate-based sealer's push-out bond strength with and without incorporation of chitosan nanoparticles: An investigation.

Aim And Objectives: The aim of the study was to compare and evaluate the push-out bond strength (POBS) of epoxy resin-based and calcium silicate-based sealers with and without incorporating chitosan nanoparticles (CSNPs).

Methodology: Eighty human mandibular premolars with a single canal were taken. A standard root length of 15 mm was established.

Green Synthesis of -Mediated Strontium Nanoparticles and its Anti-Inflammatory Activity.

Background: Considerable focus has been directed toward green synthesis as a dependable, sustainable, and environmentally friendly approach for synthesizing various nanomaterials. , a quickly grown pantropical weed, has been used widely for its anti-inflammatory and antimicrobial activity in traditional medicine. The development of strontium-based nanoparticles and nanoparticles linked with strontium has garnered attention in recent years due to their established utility in diverse domains such as effective drug distribution, bioimaging, cancer treatment, and advancements in bone engineering.

Nicotina Stomatitis - A Report of Two Cases.

Nicotina stomatitis is the inflammation of the minor salivary glands present in the hard palate due to chronic smoking habit. The patients are mostly symptomless and present with multiple red discrete papules in the hard palate surrounded by grayish white areas. The histopathology of the lesion is discussed and cessation of the smoking habit treats the condition within 2-4 weeks.

Comparative study of male and female human hair: A microscopic analysis.

The outer cuticle, middle cortex, and inner medulla make up hair, which is an epidermal outgrowth. Hair is resilient under harsh natural conditions, thus it is frequently collected at crime scenes, making human hair analysis important in the forensic sciences field. It aids in the formation of a triangle connecting a crime scene, a victim, and a culprit.

A brain peptide stimulates release of amylase from the midgut tissue of larvae of Opisina arenosella Walk. (Lepidoptera: Cryptophasidae).

Brain extracts from 3 to 4 day old final (eighth) instar larvae of Opisina arenosella (Lepidoptera) stimulate amylase release from midgut preparations maintained in vitro. This effect of the brain extract was both time and dose dependent. The brain factor stimulating enzyme release may be a peptide as it is heat stable and susceptible to treatment with proteolytic enzymes.

In vitro release of digestive enzymes by FMRF amide related neuropeptides and analogues in the lepidopteran insect Opisina arenosella (Walk.).

The insect neuropeptides FMRF amide, leucomyosupressin (LMS) and neuropeptide analogues leucosulfakinins (FLSK and LSK II Ser (SO(3)H)), perisulfakinin (PSK), proleucosulfakinin (PLSK), 14A[phi1]WP-I, 542phi1, and 378A[5b]WP-I were assayed for their effects on the release of amylase and protease from the midgut tissue of larvae of Opisina arenosella. In the bioassay, empty midgut tubes ligated at both ends using hair were incubated with insect saline containing neuropeptides/analogues in a bioassay apparatus at 37 degrees C for 30 min. After incubation the contents of the midgut preparations were analyzed for amylase and protease activity.

Inhibition of digestive enzyme release by neuropeptides in larvae of Opisina arenosella (Lepidoptera: Cryptophasidae).

Leucokinins are a group of structurally related neuropeptides stimulating gut motility and fluid secretion by Malpighian tubule in insects. For studying effect of neuropeptides on digestive enzyme release, empty midgut tubes of larvae of Opisina arenosella ligated at both ends with hair were incubated with Leucokinins (LK I-VIII), LK analogues and Leucopyrokinin (LPK) in a bioassay apparatus at 37 degrees C for 30 min. The lumen contents were subsequently analyzed for digestive enzyme levels.