Volume 13, Issue 2 e201900246
FULL ARTICLE

Morphological and functional characteristics of aging kidneys based on two-photon microscopy in vivo

Shulian Wu

Shulian Wu

Fujian Provincial Key Laboratory of Photonic Technology, Key Laboratory of Optoelectronic Science and Technology for Medicine, College of Photonic and Electronic Engineering, Fujian Normal University, Ministry of Education, Fuzhou, China

Fischell Department of Bioengineering, University of Maryland, College Park, Maryland

Search for more papers by this author
Hengchang Guo

Hengchang Guo

Fischell Department of Bioengineering, University of Maryland, College Park, Maryland

Search for more papers by this author
Hannah Horng

Hannah Horng

Fischell Department of Bioengineering, University of Maryland, College Park, Maryland

Search for more papers by this author
Yi Liu

Yi Liu

Fischell Department of Bioengineering, University of Maryland, College Park, Maryland

Search for more papers by this author
Hui Li

Hui Li

Fujian Provincial Key Laboratory of Photonic Technology, Key Laboratory of Optoelectronic Science and Technology for Medicine, College of Photonic and Electronic Engineering, Fujian Normal University, Ministry of Education, Fuzhou, China

Search for more papers by this author
Parnaz Daneshpajouhnejad

Parnaz Daneshpajouhnejad

Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, Maryland

Search for more papers by this author
Avi Rosenberg

Avi Rosenberg

Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, Maryland

Search for more papers by this author
Christopher Albanese

Christopher Albanese

Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC

Search for more papers by this author
Suman Ranjit

Suman Ranjit

Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC

Search for more papers by this author
Peter M. Andrews

Peter M. Andrews

Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC

Search for more papers by this author
Moshe Levi

Moshe Levi

Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC

Search for more papers by this author
Qinggong Tang

Corresponding Author

Qinggong Tang

Fischell Department of Bioengineering, University of Maryland, College Park, Maryland

Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma

Correspondence

Yu Chen, Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742.

Email: [email protected]

Qinggong Tang, Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019.

Email: [email protected]

Search for more papers by this author
Yu Chen

Corresponding Author

Yu Chen

Fujian Provincial Key Laboratory of Photonic Technology, Key Laboratory of Optoelectronic Science and Technology for Medicine, College of Photonic and Electronic Engineering, Fujian Normal University, Ministry of Education, Fuzhou, China

Fischell Department of Bioengineering, University of Maryland, College Park, Maryland

Correspondence

Yu Chen, Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742.

Email: [email protected]

Qinggong Tang, Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019.

Email: [email protected]

Search for more papers by this author
First published: 05 November 2019
Citations: 6

Funding information: Foundation for the National Institutes of Health, Grant/Award Number: R21 AG042700; Special Funds of the Central Government Guiding Local Science and Technology Development, Grant/Award Number: 2017L3009

Abstract

Age-related kidney disease, which is chronic and naturally occurring, is a general term for a set of heterogeneous disorders affecting kidney structures and characterized by a decline in renal function. Age-related renal insufficiency has important implications with regard to body homeostasis, drug toxicity and renal transplantation. In our study, two-photon microscopy was used to image kidney morphological and functional characteristics in an age-related rat model in vivo. The changes in morphology are analyzed based on autofluorescence and Hoechst 33342 labeling in rats with different ages. Structural parameters including renal tubular diameter, cell nuclei density, size and shape are studied and compared with Hematoxylin and Eosin histological analysis. Functional characteristics, such as blood flow, and glomerular filtration rate are studied with high-molecular weight (MW) 500-kDa dextran-fluorescein and low-MW 10-kDa dextran-rhodamine. Results indicate that morphology changes significantly and functional characteristics deteriorate with age. These parameters are potential indicators for evaluating age-related renal morphology and function changes. Combined analyses of these parameters could provide a quantitative, novel method for monitoring kidney diseases and/or therapeutic effects of kidney drugs.image

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.