Norah Spears

4.7k total citations · 1 hit paper
76 papers, 3.5k citations indexed

About

Norah Spears is a scholar working on Public Health, Environmental and Occupational Health, Reproductive Medicine and Molecular Biology. According to data from OpenAlex, Norah Spears has authored 76 papers receiving a total of 3.5k indexed citations (citations by other indexed papers that have themselves been cited), including 56 papers in Public Health, Environmental and Occupational Health, 34 papers in Reproductive Medicine and 19 papers in Molecular Biology. Recurrent topics in Norah Spears's work include Reproductive Biology and Fertility (52 papers), Ovarian function and disorders (18 papers) and Sperm and Testicular Function (15 papers). Norah Spears is often cited by papers focused on Reproductive Biology and Fertility (52 papers), Ovarian function and disorders (18 papers) and Sperm and Testicular Function (15 papers). Norah Spears collaborates with scholars based in United Kingdom, United States and Canada. Norah Spears's co-authors include Richard A. Anderson, Federica Lopes, Alison Murray, William H. Wallace, Stephanie Morgan, Roger G. Gosden, Charlie Gourley, Rod T. Mitchell, R. G. Gosden and Agnes Stefansdottir and has published in prestigious journals such as Cell, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Norah Spears

73 papers receiving 3.4k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Ovarian damage from chemotherapy and current approaches to its protection

2019 416 citations Norah Spears, Federica Lopes et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Norah Spears United Kingdom	30	2.5k	1.9k	1.1k	396	350	76	3.5k
Ruth Shalgi Israel	35	2.5k 1.0×	2.2k 1.2×	1.2k 1.1×	425 1.1×	234 0.7×	137	3.9k
Alberto Revelli Italy	36	2.1k 0.8×	2.6k 1.4×	659 0.6×	517 1.3×	979 2.8×	160	4.2k
Shyamal K. Roy United States	34	1.8k 0.7×	1.0k 0.6×	1.1k 1.1×	658 1.7×	219 0.6×	101	3.0k
Monica Muratori Italy	33	1.6k 0.6×	2.0k 1.0×	717 0.7×	460 1.2×	148 0.4×	84	3.0k
Yingpu Sun China	35	1.9k 0.7×	1.8k 1.0×	1.2k 1.1×	340 0.9×	783 2.2×	203	3.8k
Katja J. Teerds Netherlands	36	1.1k 0.4×	1.6k 0.9×	1.2k 1.1×	689 1.7×	244 0.7×	106	3.5k
Zuomin Zhou China	33	1.1k 0.4×	1.4k 0.7×	1.5k 1.4×	734 1.9×	328 0.9×	125	3.4k
Francesca E. Duncan United States	33	2.5k 1.0×	1.4k 0.8×	1.5k 1.4×	327 0.8×	532 1.5×	123	4.1k
Barry T. Hinton United States	33	959 0.4×	1.7k 0.9×	1.3k 1.3×	447 1.1×	184 0.5×	95	3.3k
A. Gougeon France	16	2.2k 0.9×	2.0k 1.1×	673 0.6×	398 1.0×	462 1.3×	41	2.9k

Countries citing papers authored by Norah Spears

Since Specialization

Citations

This map shows the geographic impact of Norah Spears's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Norah Spears with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Norah Spears more than expected).

Fields of papers citing papers by Norah Spears

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Norah Spears. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Norah Spears. The network helps show where Norah Spears may publish in the future.

Co-authorship network of co-authors of Norah Spears

This figure shows the co-authorship network connecting the top 25 collaborators of Norah Spears. A scholar is included among the top collaborators of Norah Spears based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Norah Spears. Norah Spears is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Spears, Norah, et al.. (2025). The impact of in utero exposure to cancer treatments on foetal reproductive development and future fertility: a systematic review. Human Reproduction Open. 2025(3). hoaf046–hoaf046. 1 indexed citations

Stefansdottir, Agnes, et al.. (2024). Can we manipulate the ovary’s own metabolism to protect it from chemotherapy-induced damage?. EMBO Molecular Medicine. 16(10). 2274–2275.

Rosario, Roseanne, et al.. (2023). Anti-Mullerian hormone attenuates both cyclophosphamide-induced damage and PI3K signalling activation, while rapamycin attenuates only PI3K signalling activation, in human ovarian cortex in vitro. Human Reproduction. 39(2). 382–392. 19 indexed citations

Stefansdottir, Agnes, et al.. (2023). In vitro exposure to benzo[a]pyrene damages the developing mouse ovary. Reproduction and Fertility. 4(2). 3 indexed citations

Duncan, W. Colin, et al.. (2023). Recent advances in the understanding of tubal ectopic pregnancy. PubMed. 12. 26–26. 3 indexed citations

Matilionyte, Gabriele, Melissa D. Tharmalingam, Federica Lopes, et al.. (2022). Maintenance of Sertoli Cell Number and Function in Immature Human Testicular Tissues Exposed to Platinum-Based Chemotherapy—Implications for Fertility Restoration. SHILAP Revista de lepidopterología. 4. 825734–825734. 5 indexed citations

Lopes, Federica, et al.. (2020). Chemotherapy induced damage to spermatogonial stem cells in prepubertal mouse in vitro impairs long-term spermatogenesis. Toxicology Reports. 8. 114–123. 21 indexed citations

Uppangala, Shubhashree, Vasudeva Bhat, Karthik Udupa, et al.. (2020). Oncofertility: Knowledge, Attitudes, and Barriers Among Indian Oncologists and Gynecologists. Journal of Adolescent and Young Adult Oncology. 10(1). 71–77. 18 indexed citations

Lopes, Federica, et al.. (2020). Single and combined effects of cisplatin and doxorubicin on the human and mouse ovary in vitro. Reproduction. 159(2). 193–204. 22 indexed citations

10.

Lopes, Federica, et al.. (2018). Chemotherapy drugs cyclophosphamide, cisplatin and doxorubicin induce germ cell loss in an in vitro model of the prepubertal testis. Scientific Reports. 8(1). 1773–1773. 72 indexed citations

11.

Morgan, Stephanie, et al.. (2015). Culture and Co-Culture of Mouse Ovaries and Ovarian Follicles. Journal of Visualized Experiments. 14 indexed citations

12.

Childs, Andrew J., Rosemary A. L. Bayne, Alison Murray, et al.. (2010). Differential expression and regulation by activin of the neurotrophins BDNF and NT4 during human and mouse ovarian development. Developmental Dynamics. 239(4). 1211–1219. 29 indexed citations

13.

Paul, Catriona, Alison Murray, Norah Spears, & Philippa T. K. Saunders. (2008). A single, mild, transient scrotal heat stress causes DNA damage, subfertility and impairs formation of blastocysts in mice. Reproduction. 136(1). 73–84. 212 indexed citations

14.

Telfer, Evelyn E., Roger G. Gosden, Anne Grete Byskov, et al.. (2005). On Regenerating the Ovary and Generating Controversy. Cell. 122(6). 821–822. 109 indexed citations

15.

Leask, Rosemary, et al.. (2001). Effect of ascorbic acid on health and morphology of bovine preantral follicles during long-term culture. Reproduction. 122(3). 487–495. 75 indexed citations

16.

Spears, Norah, et al.. (1999). Incorporating discussion of cultural diversity throughout the first-year medical curriculum. Academic Medicine. 74(5). 582–3.

17.

Gosden, Roger G. & Norah Spears. (1997). Programmed cell death in the reproductive system. British Medical Bulletin. 53(3). 644–661. 63 indexed citations

18.

Spears, Norah, N. I. Boland, Alison Murray, & Roger G. Gosden. (1994). Mouse oocytes derived from in vitro grown primary ovarian follicles are fertile. Human Reproduction. 9(3). 527–532. 216 indexed citations

19.

Spears, Norah, et al.. (1990). Sustained reproductive responses in Djungarian hamsters ( Phodopus sungorus ) exposed to a single long day. Reproduction. 88(2). 635–643. 13 indexed citations

20.

Spears, Norah & John R. Clarke. (1987). Effect of nutrition, temperature and photoperiod on the rate of sexual maturation of the field vole ( Microtus agrestis ). Reproduction. 80(1). 175–181. 9 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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