Gregory S. Heard

1.2k total citations
22 papers, 856 citations indexed

About

Gregory S. Heard is a scholar working on Cell Biology, Organic Chemistry and Pathology and Forensic Medicine. According to data from OpenAlex, Gregory S. Heard has authored 22 papers receiving a total of 856 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Cell Biology, 10 papers in Organic Chemistry and 7 papers in Pathology and Forensic Medicine. Recurrent topics in Gregory S. Heard's work include Biotin and Related Studies (19 papers), Click Chemistry and Applications (10 papers) and Vitamin D Research Studies (7 papers). Gregory S. Heard is often cited by papers focused on Biotin and Related Studies (19 papers), Click Chemistry and Applications (10 papers) and Vitamin D Research Studies (7 papers). Gregory S. Heard collaborates with scholars based in United States, Australia and United Kingdom. Gregory S. Heard's co-authors include Barry Wolf, Julie R. Secor McVoy, Robert E. Grier, Karen Weissbecker, Robert T. Leshner, Walter E. Nance, Virginia K. Proud, E. F. Annison, R. L. Hood and Michael J. Painter and has published in prestigious journals such as New England Journal of Medicine, Neurology and PEDIATRICS.

In The Last Decade

Gregory S. Heard

22 papers receiving 814 citations

Peers

Gregory S. Heard

PFM

NEURO

Jasbir Chauhan Canada

H. Christomanou Germany

Yi Lun United States

Allan Powe United States

Caterina Porto Italy

N. Chamoles Argentina

M. Lois Veath United States

Martha Sattler United States

Rebecca Soska United States

Eric Crombez United States

Jasbir Chauhan Canada

Gregory S. Heard

293 ×0.4

138 ×0.3

143 ×0.5

97 ×0.4

PFM

25 ×0.2

NEURO

Citations per year, relative to Gregory S. Heard Gregory S. Heard (= 1×) peers Jasbir Chauhan

Countries citing papers authored by Gregory S. Heard

Since Specialization

Citations

This map shows the geographic impact of Gregory S. Heard'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 Gregory S. Heard with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gregory S. Heard more than expected).

Fields of papers citing papers by Gregory S. Heard

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gregory S. Heard. 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 Gregory S. Heard. The network helps show where Gregory S. Heard may publish in the future.

Co-authorship network of co-authors of Gregory S. Heard

This figure shows the co-authorship network connecting the top 25 collaborators of Gregory S. Heard. A scholar is included among the top collaborators of Gregory S. Heard 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 Gregory S. Heard. Gregory S. Heard 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

Heard, Gregory S., et al.. (1991). Effects of age and biotin status on postnatal development of plasma biotinidase activity in rats. Biochemical Medicine and Metabolic Biology. 45(1). 92–100. 3 indexed citations

Wolf, Barry, Jeanne Hymes, & Gregory S. Heard. (1990). [11] Biotinidase. Methods in enzymology on CD-ROM/Methods in enzymology. 184. 103–111. 14 indexed citations

Wolf, Barry & Gregory S. Heard. (1990). Screening for Biotinidase Deficiency in Newborns: Worldwide Experience. PEDIATRICS. 85(4). 512–517. 59 indexed citations

Grier, Robert E., Gregory S. Heard, Paul B. Watkins, & Barry Wolf. (1990). Low biotinidase activities in the sera of patients with impaired liver function: Evidence that the liver is the source of serum biotinidase. Clinica Chimica Acta. 186(3). 397–400. 27 indexed citations

Weissbecker, Karen, et al.. (1989). An automated procedure for measuring biotinidase activity in serum.. Clinical Chemistry. 35(5). 831–833. 10 indexed citations

Wolf, Barry & Gregory S. Heard. (1987). Reply. The Journal of Pediatrics. 110(5). 818–819. 2 indexed citations

Heard, Gregory S., et al.. (1986). Neonatal screening for biotinidase deficiency: Results of a 1-year pilot study. The Journal of Pediatrics. 108(1). 40–46. 56 indexed citations

Painter, Michael J., et al.. (1986). Biotinidase deficiency. Neurology. 36(8). 1107–1107. 34 indexed citations

Wolf, Barry, et al.. (1986). Neonatal screening for biotinidase deficiency: An update. Journal of Inherited Metabolic Disease. 9(S2). 303–306. 9 indexed citations

10.

Heard, Gregory S. & E. F. Annison. (1986). Gastrointestinal Absorption of Vitamin B-6 in the Chicken (Gallus domesticus). Journal of Nutrition. 116(1). 107–120. 21 indexed citations

11.

Wolf, Barry, Gregory S. Heard, Karen Weissbecker, et al.. (1985). Biotinidase deficiency: Initial clinical features and rapid diagnosis. Annals of Neurology. 18(5). 614–617. 119 indexed citations

12.

Wolf, Barry, et al.. (1985). 875 BIOTINIDASE DEFICIENCY DETECTED BY A STATEWIDE NEONATAL SCREENING PROGRAM. Pediatric Research. 19(4). 256A–256A. 1 indexed citations

13.

Wolf, Barry, et al.. (1985). Biotinidase Deficiency^a. Annals of the New York Academy of Sciences. 447(1). 252–262. 39 indexed citations

14.

Wolf, Barry, et al.. (1985). Clinical Findings in Four Children with Biotinidase Deficiency Detected through a Statewide Neonatal Screening Program. New England Journal of Medicine. 313(1). 16–19. 82 indexed citations

15.

Wolf, Barry, Robert E. Grier, Julie R. Secor McVoy, & Gregory S. Heard. (1985). Biotinidase deficiency: A novel vitamin recycling defect. Journal of Inherited Metabolic Disease. 8(S1). 53–58. 128 indexed citations

16.

Heard, Gregory S., Robert E. Grier, Debra L. Weiner, Julie R. Secor McVoy, & Barry Wolf. (1985). Biotinidase—A Possible Mechanism for the Recycling of Biotin. Annals of the New York Academy of Sciences. 447(1). 400–400. 18 indexed citations

17.

Heard, Gregory S., Barry Wolf, & Janardan K. Reddy. (1984). PANCREATIC BIOTINIDASE ACTIVITY: THE POTENTIAL FOR INTESTINAL PROCESSING OF DIETARY PROTEIN-BOUND BIOTIN. Pediatric Research. 18. 198A–198A. 14 indexed citations

18.

Heard, Gregory S., Julie R. Secor McVoy, & Barry Wolf. (1984). A screening method for biotinidase deficiency in newborns.. Clinical Chemistry. 30(1). 125–127. 115 indexed citations

19.

Wolf, Barry, et al.. (1984). Biotinidase Deficiency: The Possible Role of Biotinidase in the Processing of Dietary Protein-bound Biotin. PubMed. 7 Suppl 2. 121–122. 54 indexed citations

20.

Heard, Gregory S., R. L. Hood, & Alan R. Johnson. (1983). Hepatic biotin and the sudden infant death syndrome. The Medical Journal of Australia. 2(7). 305–306. 7 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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