{"doi":"10.1016/j.mce.2008.07.016","title":"Leydig cell aging and the mechanisms of reduced testosterone synthesis","abstract":null,"journal":"Molecular and Cellular Endocrinology","year":2009,"id":588470,"datarank":9.33108009654993,"base_score":5.375278407684165,"endowment":5.375278407684165,"self_citation_contribution":0.8062917611526249,"citation_network_contribution":8.524788335397306,"self_endowment_contribution":0.8062917611526249,"citer_contribution":8.524788335397306,"corpus_percentile":null,"corpus_rank":null,"citation_count":215,"citer_count":200,"citers_with_citation_signal":184,"citers_with_endowment":184,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":186209,"name":"Haolin Chen","orcid":null,"position":1,"is_corresponding":false},{"id":186139,"name":"Vassilios Papadopoulos","orcid":"0000-0002-1183-8568","position":2,"is_corresponding":false},{"id":186846,"name":"Barry R. Zirkin","orcid":null,"position":3,"is_corresponding":false},{"id":1505505,"name":"Andrew S. Midzak","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Leydig cell aging and the mechanisms of reduced testosterone synthesis","abstract":"In males, serum testosterone levels decline with advancing age. Though part of a complex process, this age-related decline in testosterone appears to occur, in part, due to a significant decline in the ability of aged Leydig cells to produce testosterone maximally in response to luteinizing hormone (LH). The structure of the molecular machinery responsible for the synthesis of testosterone is described, and placed in the context of Leydig cell biology. Multiple parameters related to the synthesis of testosterone by the Leydig cell have been observed to change with age. Relationships among these changes are reviewed. A discussion of potential causes of the age-related decline in Leydig cell steroidogenic capacity presents a model in which the inability of aged cells to adequately respond to hormonal stimulation results in cellular regression with concomitant decline in maximal testosterone output.","is_dataset_classified":null,"base_score":5.375278407684165,"endowment":5.375278407684165,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"18761053","pmcid":null,"openalex_id":"https://openalex.org/W2026359214","authors":[],"funders":[],"total_grants":0,"fwci":1.8781,"citation_percentile":0.85757505,"influential_citations":6,"citation_trend":[{"year":2012,"count":6},{"year":2013,"count":7},{"year":2014,"count":15},{"year":2015,"count":15},{"year":2016,"count":11},{"year":2017,"count":14},{"year":2018,"count":15},{"year":2019,"count":19},{"year":2020,"count":14},{"year":2021,"count":16},{"year":2022,"count":15},{"year":2023,"count":11},{"year":2024,"count":18},{"year":2025,"count":19},{"year":2026,"count":9}],"oa_status":"closed","license":"https://www.elsevier.com/tdm/userlicense/1.0/","oa_locations":[{"url":"https://api.elsevier.com/content/article/PII:S0303720708003055?httpAccept=text/xml","host_type":"publisher"},{"url":"https://api.elsevier.com/content/article/PII:S0303720708003055?httpAccept=text/plain","host_type":"publisher"},{"url":"https://doi.org/10.1016/j.mce.2008.07.016","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/18761053","host_type":"repository"}],"fields_of_study":["Hormonal and reproductive studies","Sperm and Testicular Function","Neurobiology and Insect Physiology Research","Biology","Medicine","Animals","Cellular Senescence","Down-Regulation","Humans","Leydig Cells","Male","Models, Biological","Signal Transduction","Testosterone"],"mesh_terms":["Animals","Humans","Leydig Cells","Male","Models, Biological","Testosterone","Signal Transduction","Down-Regulation","Cellular Senescence"],"keywords":["Leydig cell","Testosterone (patch)","Endocrinology","Context (archaeology)","Internal medicine","Luteinizing hormone","Hormone","Biology","Stimulation","Medicine"],"sdg_mappings":[{"sdg_number":0,"sdg_label":"Good health and well-being"}],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-07-21T03:16:05.683514Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}