Jeffrey D. Klopfenstein

2.5k total citations
63 papers, 1.5k citations indexed

About

Jeffrey D. Klopfenstein is a scholar working on Surgery, Molecular Biology and Cancer Research. According to data from OpenAlex, Jeffrey D. Klopfenstein has authored 63 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Surgery, 17 papers in Molecular Biology and 17 papers in Cancer Research. Recurrent topics in Jeffrey D. Klopfenstein's work include Protease and Inhibitor Mechanisms (11 papers), Intracranial Aneurysms: Treatment and Complications (9 papers) and Spinal Fractures and Fixation Techniques (9 papers). Jeffrey D. Klopfenstein is often cited by papers focused on Protease and Inhibitor Mechanisms (11 papers), Intracranial Aneurysms: Treatment and Complications (9 papers) and Spinal Fractures and Fixation Techniques (9 papers). Jeffrey D. Klopfenstein collaborates with scholars based in United States, India and Australia. Jeffrey D. Klopfenstein's co-authors include Krishna Kumar Veeravalli, Louis J. Kim, Robert F. Spetzler, Volker K.H. Sonntag, David M. Pinson, Bharath Chelluboina, David Z. Wang, Jasti S. Rao, Iman Feiz‐Erfan and Joseph M. Zabramski and has published in prestigious journals such as PLoS ONE, Stroke and Scientific Reports.

In The Last Decade

Jeffrey D. Klopfenstein

59 papers receiving 1.5k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jeffrey D. Klopfenstein United States	23	478	426	323	282	240	63	1.5k
Marcus Czabanka Germany	28	733 1.5×	562 1.3×	463 1.4×	319 1.1×	199 0.8×	136	2.3k
Shuyu Hao China	24	768 1.6×	480 1.1×	319 1.0×	524 1.9×	126 0.5×	132	1.9k
Riccardo Rodriguez y Baena Italy	24	541 1.1×	358 0.8×	355 1.1×	98 0.3×	105 0.4×	76	1.6k
Angelina Cistaro Italy	25	1.2k 2.4×	281 0.7×	191 0.6×	145 0.5×	216 0.9×	90	2.0k
Melina Nieminen-Kelhä Germany	23	223 0.5×	591 1.4×	597 1.8×	149 0.5×	89 0.4×	63	2.1k
Prabal Deb India	18	303 0.6×	187 0.4×	283 0.9×	298 1.1×	76 0.3×	65	1.3k
Ricardo J. Komotar United States	19	464 1.0×	205 0.5×	202 0.6×	347 1.2×	120 0.5×	79	1.4k
Tetsuro Sameshima Japan	19	384 0.8×	292 0.7×	482 1.5×	404 1.4×	249 1.0×	69	1.5k
Mei Liu China	16	240 0.5×	206 0.5×	309 1.0×	230 0.8×	129 0.5×	46	1.2k
Özlem Özen Türkiye	21	245 0.5×	397 0.9×	205 0.6×	192 0.7×	66 0.3×	111	1.3k

Countries citing papers authored by Jeffrey D. Klopfenstein

Since Specialization

Citations

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

Fields of papers citing papers by Jeffrey D. Klopfenstein

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Jeffrey D. Klopfenstein. 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 Jeffrey D. Klopfenstein. The network helps show where Jeffrey D. Klopfenstein may publish in the future.

Co-authorship network of co-authors of Jeffrey D. Klopfenstein

This figure shows the co-authorship network connecting the top 25 collaborators of Jeffrey D. Klopfenstein. A scholar is included among the top collaborators of Jeffrey D. Klopfenstein 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 Jeffrey D. Klopfenstein. Jeffrey D. Klopfenstein 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

Fornal, Casimir A., et al.. (2026). B7-H3 upregulation in ischemic stroke: friend or foe?. Experimental Neurology. 399. 115675–115675.

Challa, Siva Reddy, et al.. (2025). Temporal mRNA Expression of Purinergic P2 Receptors in the Brain Following Cerebral Ischemia and Reperfusion: Similarities and Distinct Variations Between Rats and Mice. International Journal of Molecular Sciences. 26(6). 2379–2379.

Nalamolu, Koteswara Rao, Bharath Chelluboina, Casimir A. Fornal, et al.. (2021). Stem cell treatment improves post stroke neurological outcomes: a comparative study in male and female rats. Stroke and Vascular Neurology. 6(4). 519–527. 18 indexed citations

Russell, Thomas A., et al.. (2021). Sectioning of C2 nerve roots during C1–2 fusion: report of aberrant vertebral artery during C2 nerve root sectioning. Illustrative case. Journal of Neurosurgery Case Lessons. 2(18). CASE21268–CASE21268.

Nalamolu, Koteswara Rao, Jeffrey D. Klopfenstein, David M. Pinson, et al.. (2019). Exosomes Secreted by the Cocultures of Normal and Oxygen–Glucose-Deprived Stem Cells Improve Post-stroke Outcome. NeuroMolecular Medicine. 21(4). 529–539. 39 indexed citations

Chelluboina, Bharath, Jeffrey D. Klopfenstein, David M. Pinson, et al.. (2015). Matrix Metalloproteinase-12 Induces Blood–Brain Barrier Damage After Focal Cerebral Ischemia. Stroke. 46(12). 3523–3531. 70 indexed citations

Klopfenstein, Jeffrey D., et al.. (2015). Can a Closed Carotid Artery Be Reopened?. Current Cardiology Reports. 17(10). 85–85. 6 indexed citations

Chelluboina, Bharath, Jeffrey D. Klopfenstein, David M. Pinson, David Z. Wang, & Krishna Kumar Veeravalli. (2014). Stem Cell Treatment After Cerebral Ischemia Regulates the Gene Expression of Apoptotic Molecules. Neurochemical Research. 39(8). 1511–1521. 15 indexed citations

Chelluboina, Bharath, Jeffrey D. Klopfenstein, Meena Gujrati, Jasti S. Rao, & Krishna Kumar Veeravalli. (2013). Temporal Regulation of Apoptotic and Anti-apoptotic Molecules After Middle Cerebral Artery Occlusion Followed by Reperfusion. Molecular Neurobiology. 49(1). 50–65. 62 indexed citations

10.

Velpula, Kiran Kumar, Venkata Ramesh Dasari, Andrew J. Tsung, et al.. (2011). Regulation of Glioblastoma Progression by Cord Blood Stem Cells Is Mediated by Downregulation of Cyclin D1. PLoS ONE. 6(3). e18017–e18017. 22 indexed citations

11.

Chetty, Chandramu, Sajani S. Lakka, Praveen Bhoopathi, et al.. (2010). Urokinase Plasminogen Activator Receptor and/or Matrix Metalloproteinase-9 Inhibition Induces Apoptosis Signaling through Lipid Rafts in Glioblastoma Xenograft Cells. Molecular Cancer Therapeutics. 9(9). 2605–2617. 19 indexed citations

12.

Gondi, Christopher S., Krishna Kumar Veeravalli, Bharathi Gorantla, et al.. (2010). Human umbilical cord blood stem cells show PDGF-D–dependent glioma cell tropism in vitro and in vivo. Neuro-Oncology. 12(5). 453–65. 28 indexed citations

13.

Kim, Louis J., Jeffrey D. Klopfenstein, & Robert F. Spetzler. (2007). CLIP RECONSTRUCTION AND SLING WRAPPING OF A FUSIFORM ANEURYSM. Operative Neurosurgery. 61(3). 79–80. 13 indexed citations

14.

Klopfenstein, Jeffrey D., Louis J. Kim, Iman Feiz-Erfan, & Curtis A. Dickman. (2006). Retroperitoneal approach for lumbar interbody fusion with anterolateral instrumentation for treatment of spondylolisthesis and degenerative foraminal stenosis. Surgical Neurology. 65(2). 111–116. 6 indexed citations

15.

Bambakidis, Nicholas C., Iman Feiz-Erfan, Jeffrey D. Klopfenstein, & Volker K.H. Sonntag. (2005). Indications for Surgical Fusion of the Cervical and Lumbar Motion Segment. Spine. 30(16S). S2–S6. 40 indexed citations

16.

Feiz‐Erfan, Iman, Patrick P. Han, Robert F. Spetzler, et al.. (2005). Exposure of Midline Cranial Base without a Facial Incision through a Combined Craniofacial-Transfacial Procedure. Operative Neurosurgery. 56(suppl_1). ONS–28. 12 indexed citations

17.

Feiz‐Erfan, Iman, Jeffrey D. Klopfenstein, Nicholas C. Bambakidis, & Volker K.H. Sonntag. (2005). Surgical management of cervical disc disease: from no fusion to fusion and back again.. PubMed. 52. 331–7. 3 indexed citations

18.

Kim, Louis J., Jeffrey D. Klopfenstein, Joseph M. Zabramski, Volker K.H. Sonntag, & Robert F. Spetzler. (2005). Analysis of Pain Resolution after Surgical Resection of Intramedullary Spinal Cord Cavernous Malformations. Neurosurgery. 58(1). 106–111. 32 indexed citations

19.

Hott, Jonathan S., Vivek R. Deshmukh, Jeffrey D. Klopfenstein, et al.. (2004). Intraoperative Iso-C C-Arm Navigation in Craniospinal Surgery: The First 60 Cases. Neurosurgery. 54(5). 1131–1137. 100 indexed citations

20.

Klopfenstein, Jeffrey D., Louis J. Kim, Iman Feiz‐Erfan, et al.. (2004). Comparison of rapid and gradual weaning from external ventricular drainage in patients with aneurysmal subarachnoid hemorrhage: a prospective randomized trial. Journal of neurosurgery. 100(2). 225–229. 103 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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