Observations on the Structure of Living Salivary Gland Chromosomes in Sciara.

The role of ecdysone in DNA-puff formation and DNA synthesis in the polytene chromosomes of Sciara coprophila.

The so-called "DNA-puffs" are a characteristic and exclusive feature of sciarid polytene chromosomes. A number of descriptive and comparative studies on these structures have been carried out over the last two decades both in Rhynchosciara angelae and in Sciara coprophila. They have revealed the fact that concurrent with puffing at these sites an excessive and disproportionate synthesis of DNA ...

Drosophila Salivary Glands in Vitro

The salivary glands of larval dipterans with their giant polytene chromosomes have been used extensively in cytogenetic studies, analysis of chromosome structure, and in the analysis of gene activity during differentiation (1, 4-7, 21, 29, 30, 35, 39). Specific local modifications at given gene loci, which are related to differentiation, are sites of RNA synthesis, and have been shown to be dep...

Radioiodine therapy effects on salivary gland function in patients with differentiated thyroid cancer [Persian]

Salivary gland involvement is one of the radioiodine therapy complications. Salivary gland scintigraphy in quantitative mode can accurately evaluate salivary gland function. Methods: Salivary gland scintigraphy was performed with Tc-99m Pertechnetate, at the time of iodine therapy as a basic study and then 3 weeks and 3 months afterwards. Ejection Fraction (EF) of parotid and submandibula...

Salivary Gland Scintigraphy in Patients with Sjogren’s Syndrome: A local Experience with Dual-tracer

Objective(s): To review the findings of the patients with Sjögren’s syndrome (SS) having technetium-99m-pertechnetate (99mTc-pertechnetate) and gallium-67 citrate (Ga-67) salivary gland scintigraphy in the past eight years.Methods: The patients with SS, who were referred to our department for salivary gland scintigraphy during January 2008-December 2015 were studied using both 99mTc-pertechneta...

An Ordered Filamentous Component in Sciara (diptera) Salivary Gland Cell Nuclei