[2] Yuri Gabel continued his studies in the Chemistry Department of the Faculty of Physics and Mathematics at Imperial Kharkiv University, graduating in 1914 with a first-class degree.

In 1915, he defended his thesis on "The Effect of Light on the Electrical Conductivity of Iodine Mercury in Acetone" and was awarded the degree of Master of Science.

Among the first scientists of the Faculty of Chemistry, along with Andrey Kiprianov [ru], he defended his doctoral dissertation on 27 November 1940, before the Council of Kharkiv State University named after A. M. Gorky.

[13][14] At the same time, since 1930, he worked at the Kharkiv Medical Institute, where he served as the head of the Department of Organic Chemistry from 1931 to 1945, and later as a professor.

It was noted that at the medical institute, Yuri Gabel managed not only to organize high-level teaching but also to establish scientific work in the department.

There, he could not continue his previous scientific research and had to study a toxic substance found in over-wintered millet.

The results of this research were published in the Proceedings of the Chkalov Regional Institute of Epidemiology and Microbiology named after I. I. Mechnikov.

Gabel died on March 23, 1949, and was buried in April of that year at the Second Kharkiv City Cemetery in the presence of colleagues.

[15][23] His work at the Kharkiv Medical Institute prompted him to study physiologically active substances, primarily heterocyclic compounds.

As noted by Alexey Kost [ru], due to the little-studied nature of the topic, Gabel "did not have the opportunity to provide material on a general basis".

Gabel's successful work in this area of chemistry led to the creation of the first and only department of heterocyclic compounds in the USSR at Kharkiv University in 1945.

Based on his work as an assistant to Konstantin Krasovsky, he prepared the "Guide to Lecture Demonstrations in Organic Chemistry" (1929).

[27] Former student of Yuri Gabel, scientist Vitaliy Ronin, characterized his teacher in his memoirs: "a gifted person, an excellent specialist in his field, he was a remarkable lecturer."

[28] Colleague Boris Krasovitsky wrote about him in his memoirs: "Yuri Orestovich—always cheerful and joyful, with a sense of humor, somewhat frivolous, and very popular with women—took everything he could from life.

[29] Yuri Gabel was close to his colleague Andrey Kiprianov, with whom he became friends during their joint work under Konstantin Krasovsky.

Boris Krasovitsky noted that the friends were complete opposites: the cheerful and joyful Gabel and the serious, focused, and pedantic Kiprianov.

[29] A photograph of Yuri Gabel and the text of his poem written in Chkalov are displayed on the right side glass of the fifth showcase at the Museum of Kharkiv National Medical University.

[31] The grave of Yuri Gabel is maintained by the staff of the chemistry department and students of Kharkiv National Medical University.

[32] Gabel as a Professor of Chemistry is a secondary character in Viktor Domontovych's novel "Girl with a Teddy Bear [uk]".