Ovarian aging is one of the most common reproductive endocrine disorders in women of reproductive age, with an increasing incidence over the years. It is characterized by a decline or depletion of ovarian function, including follicle quantity and/or quality. Depending on the degree of ovarian function decline, it can be classified into diseases including diminished ovarian reserve, premature ovarian insufficiency, premature ovarian failure, etc., which are clinically characterized by ovulatory dysfunction, reproductive endocrine hormone disruption, and ultimately lead to a decline in female fertility. The pathogenesis is complex and varied, and the exact mechanism is unknown to date. Granulosa cells play a key role in ovarian hormone synthesis and disruption development, and many studies have shown that the programmed death of granulosa cells (apoptosis, pyroptosis, autophagy, ferroptosis, cuproptosis, etc.) may be closely related to the occurrence and development of ovarian aging. In this article, we present a systematic review of the relevant literature with the aim of exploring the relationship between programmed cell death in granulosa cells and ovarian aging.

Ovarian aging is one of the most common reproductive endocrine disorders in women of reproductive age, with an increasing incidence over the years. It is characterized by a decline or depletion of ovarian function, including follicle quantity and/or quality. Depending on the degree of ovarian function decline, it can be classified into diseases including diminished ovarian reserve, premature ovarian insufficiency, premature ovarian failure, etc., which are clinically characterized by ovulatory dysfunction, reproductive endocrine hormone disruption, and ultimately lead to a decline in female fertility. The pathogenesis is complex and varied, and the exact mechanism is unknown to date. Granulosa cells play a key role in ovarian hormone synthesis and disruption development, and many studies have shown that the programmed death of granulosa cells (apoptosis, pyroptosis, autophagy, ferroptosis, cuproptosis, etc.) may be closely related to the occurrence and development of ovarian aging. In this article, we present a systematic review of the relevant literature with the aim of exploring the relationship between programmed cell death in granulosa cells and ovarian aging.

Objective: To study the survival time and its risk factors of patients with occupational pneumoconiosis. Methods: A total of 11 011 newly diagnosed occupational pneumoconiosis patients in Guangdong Province from 1980 to 2019 were selected as study subjects. The life table method was used for survival analysis. The influencing factors of survival time of occupational pneumoconiosis patients were analyzed using the WilCoxon (Gehan) test and Cox proportional hazards regression model. Results: The median survival time of pneumoconiosis patients was 26.0 years. The median survival period of stage Ⅰpatients was 3.5 years longer than that of stage Ⅱ patients and 10.1 years longer than that of stage Ⅲ patients. The median survival time of patients with an initial diagnosis age under 40.0 years old was 34.8 years longer than that of patients with an initial diagnosis age over 60.0 years old. The median survival time of patients with dust exposure duration under 25.0 years old was 13.6 years longer than patients with dust exposure duration age over 45.0 years old. The results of the Cox proportional hazards regression model showed that the initial diagnosis stage, initial diagnosis age, dust exposure duration, and medical insurance were risk factors of the survival time of occupational pneumoconiosis patients (all P<0.01). The risk of reduced survival time for patients with stage Ⅱ and stage Ⅲ as the initial diagnosis stage was 1.15 and 2.04 times higher, respectively, compared with stage Ⅰ patients (both P<0.01). The risk of reduced survival time for patients without medical insurance was 60.22 times higher than those with medical insurance (P<0.01). Conclusion: The risk factors of the survival time of occupational pneumoconiosis patients in Guangdong Province are initial diagnosis stage, initial diagnosis age, the dust exposure age, and medical insurance. Earlier detection, earlier diagnosis, and improvement of medical insurance coverage for patients can effectively improve the survival time of occupational pneumoconiosis patients.