John Mach

1.5k citations

48 papers · 990 indexed · h-index 17

Impact in

Geriatrics and Gerontology top 1%
- Frailty in Older Adults
- Pharmaceutical Practices and Patient Outcomes
Critical Care and Intensive Care Medicine top 1%
- Intensive Care Unit Cognitive Disorders

Papers in ⓘ

Critical Care and Intensive Care Medicine 16
- Intensive Care Unit Cognitive Disorders 16
Geriatrics and Gerontology 12
- Pharmaceutical Practices and Patient Outcomes 6
- Frailty in Older Adults 6

Co-authors: Sarah N. Hilmer (26 shared papers)K M Bettin (8 shared papers)David G. Le Couteur (15 shared papers)Rafael de Cabo (13 shared papers)Jeanne Y. Wei (2 shared papers)Jonathan M. Flacker (2 shared papers)Dan K. Kiely (2 shared papers)Alice E. Kane (11 shared papers)
Journals: The Journals of Gerontology Series A (10 papers)American Journal of Geriatric Psychiatry (6 papers)Experimental Gerontology (3 papers)Journal of the American Geriatrics Society (2 papers)Pharmacology Biochemistry and Behavior (2 papers)
Partner nations: United States Australia Canada

In The Last Decade

John Mach

47 papers receiving 965 citations

Peers

Countries citing papers authored by John Mach

Since Specialization

Citations

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

Fields of papers citing papers by John Mach

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John Mach. 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 John Mach. The network helps show where John Mach may publish in the future.

Co-authors

The 25 scholars most cited alongside John Mach, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with John Mach Line = papers co-authored together John Mach links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 48 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	The Association of Serum Anticholinergic Activity With Delirium in Elderly Medical Patients American Journal of Geriatric Psychiatry ·Jonathan M. Flacker, Virginia Cummings, John Mach, K M Bettin, Dan K. Kiely, Jeanne Y. Wei	1998	171
2	Serum Anticholinergic Activity in Hospitalized Older Persons with Delirium: A Preliminary Study Journal of the American Geriatrics Society ·John Mach, Maurice W. Dysken, Mike Kuskowski, Elliott Richelson, Lori Holden, Kris M. Jilk	1995	84
3	Ultrastructure of the liver microcirculation influences hepatic and systemic insulin activity and provides a mechanism for age‐related insulin resistance Aging Cell ·Mashani Mohamad, Sarah J. Mitchell, Lindsay E. Wu, Melanie Y. White, Stuart J. Cordwell, John Mach, Samantha M. Solon‐Biet, Dawn Boyer, Dawn Nines, Abhirup Das, Shi‐Yun Catherine Li, Alessandra Warren, Sarah N. Hilmer, Robin Fraser, David Sinclair, Stephen J. Simpson, Rafael de Cabo, David G. Le Couteur, Victoria C. Cogger	2016	58
4	Adverse Geriatric Outcomes Secondary to Polypharmacy in a Mouse Model: The Influence of Aging The Journals of Gerontology Series A ·Aniko Huizer‐Pajkos, Alice E. Kane, Susan E. Howlett, John Mach, Sarah J. Mitchell, Rafael de Cabo, David G. Le Couteur, Sarah N. Hilmer	2015	53
5	The Association of Serum Anticholinergic Activity With Delirium in Elderly Medical Patients American Journal of Geriatric Psychiatry ·Jonathan M. Flacker, Virginia Cummings, John Mach, K M Bettin, Dan K. Kiely, Jeanne Y. Wei	1998	47
6	Chronic Polypharmacy with Increasing Drug Burden Index Exacerbates Frailty and Impairs Physical Function, with Effects Attenuated by Deprescribing, in Aged Mice The Journals of Gerontology Series A ·John Mach, Gizem Gemikonakli, Caitlin Logan, Brent Vander Wyk, Heather Allore, Swathi Ekambareshwar, Alice E. Kane, Susan E. Howlett, Rafael de Cabo, David G. Le Couteur, Sarah N. Hilmer	2020	46
7	Serotonin (5-HT) release and uptake measured by real-time electrochemical techniques in the rat ileum American Journal of Physiology-Gastrointestinal and Liver Physiology ·Paul Bertrand, Xiao Hu, John Mach, Rebecca L. Bertrand	2008	44
8	Animal models of frailty: current applications in clinical research Clinical Interventions in Aging ·Alice E. Kane, Sarah N. Hilmer, John Mach, Sarah J. Mitchell, Rafael de Cabo, Susan E. Howlett	2016	42
9	Acetaminophen hepatotoxicity in mice: Effect of age, frailty and exposure type Experimental Gerontology ·Alice E. Kane, Sarah J. Mitchell, John Mach, Aniko Huizer‐Pajkos, Catriona McKenzie, Brett Jones, Victoria C. Cogger, David G. Le Couteur, Rafael de Cabo, Sarah N. Hilmer	2015	36
10	A Comparison of Two Mouse Frailty Assessment Tools The Journals of Gerontology Series A ·Alice E. Kane, Aniko Huizer‐Pajkos, John Mach, Sarah J. Mitchell, Rafael de Cabo, David G. Le Couteur, Susan E. Howlett, Sarah N. Hilmer	2017	34
11	The Effect of Antioxidant Supplementation on Fatigue during Exercise: Potential Role for NAD+(H) Nutrients ·John Mach, Adrian W. Midgley, Steve Dank, Ross Grant, David J. Bentley	2010	29
12	Interactions Between the Aging Gut Microbiome and Common Geriatric Giants: Polypharmacy, Frailty, and Dementia The Journals of Gerontology Series A ·Gizem Gemikonakli, John Mach, Sarah N. Hilmer	2020	27
13	Improving Health Care for Assisted Living Residents The Gerontologist ·Robert L Kane, John Mach	2007	20
14	Male–Female Differences in the Effects of Age on Performance Measures Recorded for 23 Hours in Mice The Journals of Gerontology Series A ·Trang Tran, John Mach, Gizem Gemikonakli, Harry Wu, Heather Allore, Susan E. Howlett, Christopher B. Little, Sarah N. Hilmer	2021	19
15	Polypharmacy With High Drug Burden Index (DBI) Alters the Gut Microbiome Overriding Aging Effects and Is Reversible With Deprescribing The Journals of Gerontology Series A ·Gizem Gemikonakli, John Mach, Fan Zhang, Martyn Bullock, Trang Tran, Emad El‐Omar, Sarah N. Hilmer	2022	17
16	The effect of ageing on isoniazid pharmacokinetics and hepatotoxicity in Fischer 344 rats Fundamental and Clinical Pharmacology ·John Mach, Aniko Huizer – Pajkos, Sarah J. Mitchell, Catriona McKenzie, Leo Phillips, Alice E. Kane, Brett Jones, Rafael de Cabo, Victoria C. Cogger, David G. Le Couteur, Sarah N. Hilmer	2015	16
17	The Effect of Aging on Acetaminophen Pharmacokinetics, Toxicity and Nrf2 in Fischer 344 Rats The Journals of Gerontology Series A ·John Mach, Aniko Huizer‐Pajkos, Victoria C. Cogger, Catriona McKenzie, David G. Le Couteur, Brett Jones, Rafael de Cabo, Sarah N. Hilmer	2013	16
18	Polypharmacy Results in Functional Impairment in Mice: Novel Insights Into Age and Sex Interactions The Journals of Gerontology Series A ·Harry Wu, John Mach, Gizem Gemikonakli, Trang Tran, Heather Allore, Danijela Gnjidic, Susan E. Howlett, Rafael de Cabo, David G. Le Couteur, Sarah N. Hilmer	2021	15
19	Quality of Care Provided in a Special Needs Plan Using a Nurse Care Manager Model Journal of the American Geriatrics Society ·Neil S. Wenger, Carol P. Roth, David H. Martin, Lorraine D. Nickels, Robin Beckman, Caren Kamberg, John Mach, David A. Ganz	2011	15
20	Measuring delirium severity in older general hospital inpatients without dementia. The Delirium Severity Scale. PubMed ·K M Bettin, G J Maletta, Maurice W. Dysken, Kristin M. Jilk, D.T. Weldon, Michael A. Kuskowski, John Mach	1998	14

About John Mach

John Mach is a scholar working on Critical Care and Intensive Care Medicine, Geriatrics and Gerontology, Anesthesiology and Pain Medicine, Developmental Neuroscience and Behavioral Neuroscience, having authored 48 papers that have together received 990 indexed citations. Recurring topics across this work include Intensive Care Unit Cognitive Disorders (16 papers), Health Systems, Economic Evaluations, Quality of Life (8 papers), Anesthesia and Sedative Agents (7 papers), Pharmaceutical Practices and Patient Outcomes (6 papers), Frailty in Older Adults (6 papers), Dementia and Cognitive Impairment Research (4 papers), Drug-Induced Hepatotoxicity and Protection (4 papers) and Diet and metabolism studies (4 papers). The work is most often cited by research in Geriatrics and Gerontology (284 citations), Critical Care and Intensive Care Medicine (347 citations), Anesthesiology and Pain Medicine (211 citations), Developmental Neuroscience (155 citations) and Aging (47 citations). John Mach has collaborated with scholars based in United States, Australia and Canada. Frequent co-authors include Sarah N. Hilmer, K M Bettin, David G. Le Couteur, Rafael de Cabo, Jeanne Y. Wei, Jonathan M. Flacker, Dan K. Kiely, Alice E. Kane, Susan E. Howlett and Sarah J. Mitchell. Their work appears in journals such as The Journals of Gerontology Series A, American Journal of Geriatric Psychiatry, Experimental Gerontology, Journal of the American Geriatrics Society and Pharmacology Biochemistry and Behavior.

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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