What question did this study set out to answer?

The study aimed to investigate the ultrastructure of the pars distalis in chick embryos, focusing on differences between untreated and malathion-treated specimens.

March 6, 2026Open Access

An ultrastructural study of the Pars Distalis in untreated and malathion-treated chick embryos

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Authors

JAJames Stuart Allen

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Implication

This ultrastructural study reveals cell type changes in the pars distalis of chick embryos after malathion treatment, suggesting developmental impacts.

Key Points

The study aimed to investigate the ultrastructure of the pars distalis in chick embryos, focusing on differences between untreated and malathion-treated specimens.
Conducted ultrastructural examination of the pars distalis on alternate incubation days (7-21) in chick embryos.
Identified and described seven cell types present at day 15, including corticotrophs and gonadotrophs.
Injected malathion on day 5 and assessed structural changes on days 7, 9, and 15.
Seven distinct cell types were identified in untreated chick embryos by day 15, with specific granule characteristics.
Malathion treatment induced hypertrophy and absence of secretory granules on day 7, with subsequent recovery observed by days 9 and 15.
Cell types showed progression towards normal secretory granule formation despite malathion exposure.

Cite This Study

James Stuart Allen (1977) studied this question.

synapsesocial.com/papers/69aa70b8531e4c4a9ff5abf3 https://doi.org/10.26108/x52m-yc51

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Implication

This ultrastructural study reveals cell type changes in the pars distalis of chick embryos after malathion treatment, suggesting developmental impacts.

An ultrastructural study of the Pars Distalis in untreated and malathion-treated chick embryos

Discussion

Member takes

Implication

Key Points

Cite This Study

An ultrastructural study of the Pars Distalis in untreated and malathion-treated chick embryos

Discussion

Member takes

Implication

Key Points

Cite This Study

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