Salivary gland cells

We may, I think, without too much rashness, assume that there is some substance or substances in the nerve endings or [salivary] gland cells with which both atropine and pilocarpine are capable of forming compounds. On this assumption, then, the atropine or pilocarpine compounds are formed according to some law of which their relative mass and chemical affinity for the substance are factors. 

Nurse Is there an advantage in having a 1000 1C salivary gland cell as opposed to 500 2C cells ... 

Azuma, M., T. Tamatani, Y. Kasai, and M. Sato. 1993. Immortalization of normal human salivary gland cells with duct-, myoepithelial-, acinar-, or squamous phenotype by transfection with SV40 ori- mutant deoxyribonucleic acid. Lab Invest 69(1 ) 24—42. 

Fig. 4.27. Expression of GPP labeled transcription factor in the salivary gland cells of Drosophila [62]. The generation of transcription factor molecules can be seen in the cytoplasmic reticulum as well as the distribution on the polytenic chromosomes in the nucleus. Image taken in a confocal laser scan microscope from C. Zeiss, modified for APD Imaging [6f]...

Finally, the salivary glands concentrate sodium nitrate from fruit and vegetables. The sodium nitrate is absorbed into the blood plasma and concentrated 10-20 fold by salivary gland cells before secretion. The nitrate in saliva is reduced to sodium nitrite by Eikenella corrodens, a common commensal bacterium in human saliva (Sect. 12.1.5). Sodium nitrite is an important vasodilator, but it cannot cross healthy tissues. 

Chironomus parvae salivary gland cells Na liquid membrane micropipet [ion-exchanger based on tetia(-p-chlo-rophenyl)boiate] Na+ 16 mM PI... 

Francke. C., Edstrom, J. E., McDowall, A. W., and Miller, O. L Jr. (1982). Electron microscopic visualization of a discrete class of giant translation units in salivary gland cells of Chironomus temans. EMBO J. 1, 59-62,... 

Edstrom, J.-E., and W. Beermann. 1962. The base composition of nucleic acids in chromosomes, puffs, nucleoli and. cytoplasm of Chironomus salivary gland cells. J. Cell Biol., 14 371-380. 

Da Cunha, A. B., C. Pavan, J. S. Morgante, and M. C. Garrido. 1969. Studies on cytology and differentiation in Sciaridae. II. DNA redundancy in salivary gland cells of Hybosciara fragilis (Diptera, Sciaridae). Genetics, 61 (SuppL) 335-349. 

In the salivary gland placode, the pattern of hkb RNA precedes the order in which salivary gland cells invaginate (Myat and Andrew, 2000a). This pattern of hkb RNA expression is controlled by Haiiy, a basic helix-loop-hehx (bHLH) transcription factor (Carroll et al., 1988 Hooper et al., 1989). In hairy mutant embryos, hkb RNA is expressed in all gland cells and... 

Blackman, J. G., Ginsborg, B. L., and House, C. R., 1979, On the time course of the electrical response of salivary gland cells of Nauphoeta cinerea to iontophoretically applied dopamine,/ Physiol. 287 81-92. 

Fig. 17 a-c. Electrophoretic separations of RNA from salivary gland cell cytoplasm a, gastric caeci b and midgut c 2 days after precursor administration to the medium (25 pCi [ H]uridine and 25 pCi [ H]cytidine in 5 ml of culture medium for 20 h after which the animals were left in isotope-free medium for a further 48 h before killing). It can be seen that the late mRNA is only present in salivary gland cell cytoplasm. (After Edstrom and Tan-guay, 1974)... 

Fig. 53. Chromosome set of salivary gland cells of Chironomus tentans (Beermann...

Changes in puffs in salivary gland cells of larvae of Chirononius dorsalis at different stages of larval development (larvae aged 7-8 and 9-10 days, prepupae, young pupae, old pupae) are shown schematically in Fig. 56 (Kiknadze, 1965). It is clear that... 

Fig. 55. a-c) Several stages of formation of a puff (Balbiani s ring) at locus BRx in chromosome IV of a salivary gland cell of Chironomus d) interpretation (after Beermann) of mechanism of puff formation during change in length and shape of chromosomal fibrils (Clever, 1964b Beermann, 1952). 

Investigations to study the effect of somatic radiation-induced mutations in the salivary gland cells of Drosophila after irradiation of embryos and larvae in the early stages of development (before polytenization of the chromosomes) have now been commenced in our laboratory (Lychev and Medvedev, 1967 Lychev, 1967). Recently several new species of insects have begun to be used as objects for study of the dynamics of puffs in connection with morphogenesis and with particular (especially secretory) functions (Whitten, 1964), and it must be anticipated that this extension of the research must soon lead to the discovery of new underlying principles. 

---