1
|
Huang L, Chun KS, Yu L, Lee JY, Soetikno A, Chen H, Jeong H, Barrett J, Martell K, Kang Y, Patel AA, Xu S. A Novel Method for Tracking Neck Motions Using a Skin-Conformable Wireless Accelerometer: A Pilot Study. Digit Biomark 2024; 8:40-51. [PMID: 38606345 PMCID: PMC11007253 DOI: 10.1159/000536473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 12/17/2023] [Indexed: 04/13/2024] Open
Abstract
Introduction Cervical spine disease is a leading cause of pain and disability. Degenerative conditions of the spine can result in neurologic compression of the cervical spinal cord or nerve roots and may be surgically treated with an anterior cervical discectomy and fusion (ACDF) in up to 137,000 people per year in the United States. A common sequelae of ACDF is reduced cervical range of motion (CROM) with patient-based complaints of stiffness and neck pain. Currently, tools for assessment of CROM are manual, subjective, and only intermittently utilized during doctor or physical therapy visits. We propose a skin-mountable acousto-mechanic sensor (ADvanced Acousto-Mechanic sensor; ADAM) as a tool for continuous neck motion monitoring in postoperative ACDF patients. We have developed and validated a machine learning neck motion classification algorithm to differentiate between eight neck motions (right/left rotation, right/left lateral bending, flexion, extension, retraction, protraction) in healthy normal subjects and patients. Methods Sensor data from 12 healthy normal subjects and 5 patients were used to develop and validate a Convolutional Neural Network (CNN). Results An average algorithm accuracy of 80.0 ± 3.8% was obtained for healthy normal subjects (94% for right rotation, 98% for left rotation, 65% for right lateral bending, 87% for left lateral bending, 89% for flexion, 77% for extension, 50% for retraction, 84% for protraction). An average accuracy of 67.5 ± 5.8% was obtained for patients. Discussion ADAM, with our algorithm, may serve as a rehabilitation tool for neck motion monitoring in postoperative ACDF patients. Sensor-captured vital signs and other events (extubation, vocalization, physical therapy, walking) are potential metrics to be incorporated into our algorithm to offer more holistic monitoring of patients after cervical spine surgery.
Collapse
Affiliation(s)
- Le Huang
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | | | - Lian Yu
- Sibel Health, Niles, IL, USA
| | | | - Alan Soetikno
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Hope Chen
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Hyoyoung Jeong
- Electrical and Computer Engineering, University of California Davis, Davis, CA, USA
| | - Joshua Barrett
- Department of Orthopaedic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Knute Martell
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
| | - Youn Kang
- Department of Ocean System Engineering, Jeju National University, Jeju, South Korea
| | - Alpesh A. Patel
- Departments of Orthopaedic Surgery and Neurosurgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Shuai Xu
- Sibel Health, Niles, IL, USA
- Electrical and Computer Engineering, University of California Davis, Davis, CA, USA
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| |
Collapse
|
2
|
Kwon K, Kim JU, Won SM, Zhao J, Avila R, Wang H, Chun KS, Jang H, Lee KH, Kim JH, Yoo S, Kang YJ, Kim J, Lim J, Park Y, Lu W, Kim TI, Banks A, Huang Y, Rogers JA. A battery-less wireless implant for the continuous monitoring of vascular pressure, flow rate and temperature. Nat Biomed Eng 2023; 7:1215-1228. [PMID: 37037964 DOI: 10.1038/s41551-023-01022-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 03/13/2023] [Indexed: 04/12/2023]
Abstract
Devices for monitoring blood haemodynamics can guide the perioperative management of patients with cardiovascular disease. Current technologies for this purpose are constrained by wired connections to external electronics, and wireless alternatives are restricted to monitoring of either blood pressure or blood flow. Here we report the design aspects and performance parameters of an integrated wireless sensor capable of implantation in the heart or in a blood vessel for simultaneous measurements of pressure, flow rate and temperature in real time. The sensor is controlled via long-range communication through a subcutaneously implanted and wirelessly powered Bluetooth Low Energy system-on-a-chip. The device can be delivered via a minimally invasive transcatheter procedure or it can be mounted on a passive medical device such as a stent, as we show for the case of the pulmonary artery in a pig model and the aorta and left ventricle in a sheep model, where the device performs comparably to clinical tools for monitoring of blood flow and pressure. Battery-less and wireless devices such as these that integrate capabilities for flow, pressure and temperature sensing offer the potential for continuous monitoring of blood haemodynamics in patients.
Collapse
Affiliation(s)
- Kyeongha Kwon
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
| | - Jong Uk Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
| | - Sang Min Won
- Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Jianzhong Zhao
- Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing, China
- Department of Civil and Environmental Engineering, Materials Science and Engineering, Northwestern University, Evanston, IL, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, USA
| | - Raudel Avila
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, USA
| | - Heling Wang
- Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing, China
- Department of Civil and Environmental Engineering, Materials Science and Engineering, Northwestern University, Evanston, IL, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL, USA
| | - Keum San Chun
- Electrical and Computer Engineering, the University of Texas at Austin, Austin, TX, USA
| | - Hokyung Jang
- Department of Electrical & Computer Engineering, University of Wisconsin, Madison, WI, USA
| | | | - Jae-Hwan Kim
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Seonggwang Yoo
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
| | - Youn J Kang
- Department of Ocean System Engineering, Jeju National University, Jeju, Republic of Korea
| | - Joohee Kim
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
| | - Jaeman Lim
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
| | - Yoonseok Park
- Department of Advanced Materials Engineering for Information and Electronics, Kyung Hee University, Yongin, Republic of Korea
| | - Wei Lu
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
| | - Tae-Il Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, Republic of Korea
| | - Anthony Banks
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
- Wearifi, Inc., Evanston, IL, USA
| | - Yonggang Huang
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA
- Laboratory of Flexible Electronics Technology, Tsinghua University, Beijing, China
- Department of Civil and Environmental Engineering, Materials Science and Engineering, Northwestern University, Evanston, IL, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, USA
| | - John A Rogers
- Querrey-Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, USA.
- Wearifi, Inc., Evanston, IL, USA.
- Department of Biomedical Engineering, Neurological Surgery, Chemistry, Electrical Engineering and Computer Science, Northwestern University, Evanston, IL, USA.
| |
Collapse
|
3
|
Yang AF, Chun KS, Yu L, Walter JR, Kim D, Lee JY, Jeong H, Keller MC, Seshadri DR, Olagbenro MO, Bae JW, Reuther W, Wu E, Okamoto K, Ikoma A, Lio PA, Fishbein AB, Paller AS, Xu S. Validation of a hand-mounted wearable sensor for scratching movements in adults with atopic dermatitis. J Am Acad Dermatol 2023; 88:726-729. [PMID: 36156307 DOI: 10.1016/j.jaad.2022.09.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 09/18/2022] [Accepted: 09/19/2022] [Indexed: 11/25/2022]
Affiliation(s)
- Albert F Yang
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois; University of Illinois at Chicago College of Medicine, Chicago, Illinois
| | | | - Lian Yu
- Sibel Health, Niles, Illinois
| | - Jessica R Walter
- Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | | | | | - Hyoyoung Jeong
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, Illinois
| | | | | | - Matthew O Olagbenro
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | | | | | - Ellen Wu
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | | | | | - Peter A Lio
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Medical Dermatology Associates of Chicago, Chicago, Illinois
| | - Anna B Fishbein
- Department of Pediatrics/Allergy, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Amy S Paller
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, Illinois; Department of Pediatrics/Allergy, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Shuai Xu
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Sibel Health, Niles, Illinois; Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, Illinois; Department of Biomedical Engineering, Northwestern University, Evanston, Illinois.
| |
Collapse
|
4
|
Yang AF, Chun KS, Patel SR, Xu S. 285 Performance metrics of a soft wearable acousto-mechanic sensor for measuring itch in children and adults with atopic dermatitis. Br J Dermatol 2023. [DOI: 10.1093/bjd/ljac140.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Abstract
Pruritus is a prominent symptom in many systemic (e.g. renal failure, cholestasis) and dermatologic (e.g. urticaria, xerosis) conditions. Atopic dermatitis (AD) is characterized by the itch-scratch cycle, whereby the reflexive scratching leads to greater skin inflammation and worsens pruritus. Itch in AD has also been associated with certain stages of the circadian rhythm. Therefore, an objective method of measuring nocturnal scratching behaviour as a proxy for itch symptom severity would prove useful and insightful in the management of a patient’s AD. The purpose of this study is to validate the performance of a novel wearable sensor, the advanced acousto-mechanic (ADAM) device, in regard to the detection of nocturnal scratching behaviour in paediatric and adult populations with AD. The sensor is able to detect both the accelerometer data (movement in space) and acoustic data generated by finger and wrist movements in scratching. Performance metrics used to evaluate the sensor include sensitivity, specificity, positive predictive value (PPV) and F1 score (combination of precision and recall). The sensor’s performance was compared to video recordings, the gold standard for objectively measuring scratch. A total of 60 healthy adult subjects (22 males and 38 females) were recruited and asked to perform a series of scratching behaviours and non-scratching behaviours while wearing the ADAM sensor on their dorsal hand using a one-use adhesive in a controlled environment. The data were used to create a machine-learning algorithm for scratch detection and validation in both a paediatric and adult AD cohort. Individuals with mild-to-severe AD were recruited to monitor their nocturnal scratching behaviour in the home environment. An infrared camera was provided for each subject to record the patient’s scratching and compared it to data collected by the ADAM sensor worn on the subject’s dominant dorsal hand. Video recordings were graded for scratching activity by at least two graders; scratch was defined as lasting at least 4.5 s. The scratch algorithm’s classification of scratch and non-scratch was then compared to the gold standard video recording and generated performance metrics. The initial scratch algorithm yielded sensitivity of 88%, specificity of 88% and F1 score of 90% when cross-validated with data from 10 healthy adult subjects. When cross-validated with data from all 60 healthy adult subjects, the algorithm yielded a sensitivity of 92%, specificity of 98% and F1 score of 95%. A total of 11 paediatric AD subjects (1 : 3 male-to-female ratio, ages 10.5 ± 9.1) and 46 nights of data were collected in the home setting, yielding a total of 378.4 h of video. The scratch algorithm was able to detect scratching behaviour with sensitivity of 84%, specificity of 99% and F1 score of 83% in the paediatric cohort. In the adult cohort, a total of 11 adults with atopic dermatitis (two males and nine females, ages 29 ± 13) and 73 nights of data were collected, resulting in a total of 457.7 h of video. When the data was applied to the scratch algorithm, the algorithm yielded a sensitivity of 93%, specificity of 100% and F1 score of 91%. The use of a flexible wearable sensor on the dorsal hand for detection of nocturnal scratching behaviour in both paediatric and adult subjects with atopic dermatitis can provide valuable information regarding the degree of scratching and severity of pruritus the wearer is experiencing when compared to video recording. Its ability to serve as an accurate objective measure of itch may be helpful in drug development and can help serve as a tool to guide the clinical management of symptoms.
Collapse
Affiliation(s)
- Albert F Yang
- Department of Dermatology, Northwestern University Feinberg School of Medicine , Chicago, IL , USA
| | | | - Soham R Patel
- Department of Dermatology, Northwestern University Feinberg School of Medicine , Chicago, IL , USA
| | - Shuai Xu
- Department of Dermatology, Northwestern University Feinberg School of Medicine , Chicago, IL , USA
- Sibel Health , Niles, IL , USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University , Evanston, IL , USA
- Department of Biomedical Engineering, Northwestern University , Evanston, IL , USA
| |
Collapse
|
5
|
Nathan V, Vatanparvar K, Chun KS, Kuang J. Utilizing Deep Learning on Limited Mobile Speech Recordings for Detection of Obstructive Pulmonary Disease. Annu Int Conf IEEE Eng Med Biol Soc 2022; 2022:1338-1341. [PMID: 36085620 DOI: 10.1109/embc48229.2022.9871980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Passive assessment of obstructive pulmonary disease has gained substantial interest over the past few years in the mobile and wearable computing communities. One of the promising approaches is speech-based pulmonary assessment wherein spontaneous or scripted speech is used to evaluate an individual's pulmonary condition. Recent approaches in this regard heavily rely on accurate speech activity segmentation and specific, hand-crafted features. In this paper, we present an end-to-end deep learning approach for detecting obstructive pulmonary disease. We leveraged transfer learning using a network pre-trained for a different audio-based task, and employed our own additional shallow network on top as a binary classifier to indicate if a given speech recording belongs to an asthma or COPD patient. The additional network was a fully connected neural net with 2 hidden layers, and this was evaluated on two real-world datasets. We demonstrated that the system can identify subjects with obtructive pulmonary disease using their speech with 88.3 % precision, 88.8 % recall and 88.3% F-1 score using 10-fold cross-validation. The system showed improved performance in identifying the most severely affected subgroup of patients in the dataset, with an average 93.6 % accuracy.
Collapse
|
6
|
Choi YS, Jeong H, Yin RT, Avila R, Pfenniger A, Yoo J, Lee JY, Tzavelis A, Lee YJ, Chen SW, Knight HS, Kim S, Ahn HY, Wickerson G, Vázquez-Guardado A, Higbee-Dempsey E, Russo BA, Napolitano MA, Holleran TJ, Razzak LA, Miniovich AN, Lee G, Geist B, Kim B, Han S, Brennan JA, Aras K, Kwak SS, Kim J, Waters EA, Yang X, Burrell A, Chun KS, Liu C, Wu C, Rwei AY, Spann AN, Banks A, Johnson D, Zhang ZJ, Haney CR, Jin SH, Sahakian AV, Huang Y, Trachiotis GD, Knight BP, Arora RK, Efimov IR, Rogers JA. A transient, closed-loop network of wireless, body-integrated devices for autonomous electrotherapy. Science 2022; 376:1006-1012. [PMID: 35617386 PMCID: PMC9282941 DOI: 10.1126/science.abm1703] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Temporary postoperative cardiac pacing requires devices with percutaneous leads and external wired power and control systems. This hardware introduces risks for infection, limitations on patient mobility, and requirements for surgical extraction procedures. Bioresorbable pacemakers mitigate some of these disadvantages, but they demand pairing with external, wired systems and secondary mechanisms for control. We present a transient closed-loop system that combines a time-synchronized, wireless network of skin-integrated devices with an advanced bioresorbable pacemaker to control cardiac rhythms, track cardiopulmonary status, provide multihaptic feedback, and enable transient operation with minimal patient burden. The result provides a range of autonomous, rate-adaptive cardiac pacing capabilities, as demonstrated in rat, canine, and human heart studies. This work establishes an engineering framework for closed-loop temporary electrotherapy using wirelessly linked, body-integrated bioelectronic devices.
Collapse
Affiliation(s)
- Yeon Sik Choi
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Precision Biology Research Center, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Hyoyoung Jeong
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Rose T. Yin
- Department of Biomedical Engineering, The George Washington University, Washington, DC 20052, USA
| | - Raudel Avila
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Anna Pfenniger
- Feinberg School of Medicine, Cardiology, Northwestern University, Chicago, IL 60611, USA
| | - Jaeyoung Yoo
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Jong Yoon Lee
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Sibel Health, Niles, IL, 60714, USA
| | - Andreas Tzavelis
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Medical Scientist Training Program, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Young Joong Lee
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Sheena W. Chen
- Department of General Surgery, The George Washington University, Washington, DC 20052, USA
- Department of Cardiothoracic Surgery, Veteran Affairs Medical Center, Washington, DC 20422, USA
| | - Helen S. Knight
- Department of Biomedical Engineering, The George Washington University, Washington, DC 20052, USA
| | - Seungyeob Kim
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Electronic Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon, 406-772, Republic of Korea
| | - Hak-Young Ahn
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Precision Biology Research Center, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Grace Wickerson
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Abraham Vázquez-Guardado
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | | | - Bender A. Russo
- Department of Biomedical Engineering, The George Washington University, Washington, DC 20052, USA
| | - Michael A. Napolitano
- Department of General Surgery, The George Washington University, Washington, DC 20052, USA
- Department of Cardiothoracic Surgery, Veteran Affairs Medical Center, Washington, DC 20422, USA
| | - Timothy J. Holleran
- Department of General Surgery, The George Washington University, Washington, DC 20052, USA
- Department of Cardiothoracic Surgery, Veteran Affairs Medical Center, Washington, DC 20422, USA
| | - Leen Abdul Razzak
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Alana N. Miniovich
- Department of Biomedical Engineering, The George Washington University, Washington, DC 20052, USA
| | - Geumbee Lee
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Beth Geist
- Feinberg School of Medicine, Cardiology, Northwestern University, Chicago, IL 60611, USA
| | | | - Shuling Han
- Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Jaclyn A. Brennan
- Department of Biomedical Engineering, The George Washington University, Washington, DC 20052, USA
| | - Kedar Aras
- Department of Biomedical Engineering, The George Washington University, Washington, DC 20052, USA
| | - Sung Soo Kwak
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Current Address: Center for Bionics of Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Korea
| | - Joohee Kim
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Emily Alexandria Waters
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Center for Advanced Molecular Imaging, Northwestern University, Evanston, IL 60208, USA
| | - Xiangxing Yang
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, Tx, 78712, USA
| | - Amy Burrell
- Feinberg School of Medicine, Cardiology, Northwestern University, Chicago, IL 60611, USA
| | - Keum San Chun
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, Tx, 78712, USA
| | - Claire Liu
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, The George Washington University, Washington, DC 20052, USA
| | - Changsheng Wu
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Alina Y. Rwei
- Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Alisha N. Spann
- Center for Advanced Molecular Imaging, Northwestern University, Evanston, IL 60208, USA
| | - Anthony Banks
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - David Johnson
- Feinberg School of Medicine, Cardiology, Northwestern University, Chicago, IL 60611, USA
| | - Zheng Jenny Zhang
- Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Chad R. Haney
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Center for Advanced Molecular Imaging, Northwestern University, Evanston, IL 60208, USA
| | - Sung Hun Jin
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Electronic Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon, 406-772, Republic of Korea
| | - Alan Varteres Sahakian
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Yonggang Huang
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, The George Washington University, Washington, DC 20052, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Gregory D. Trachiotis
- Department of Cardiothoracic Surgery, Veteran Affairs Medical Center, Washington, DC 20422, USA
| | - Bradley P. Knight
- Feinberg School of Medicine, Cardiology, Northwestern University, Chicago, IL 60611, USA
| | - Rishi K. Arora
- Feinberg School of Medicine, Cardiology, Northwestern University, Chicago, IL 60611, USA
| | - Igor R. Efimov
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, The George Washington University, Washington, DC 20052, USA
| | - John A. Rogers
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| |
Collapse
|
7
|
Yang AF, Nguyen M, Li AW, Lee B, Chun KS, Wu E, Fishbein AB, Paller AS, Xu S. Use of technology for the objective evaluation of scratching behavior: A systematic review. JAAD Int 2021; 5:19-32. [PMID: 34816131 PMCID: PMC8593746 DOI: 10.1016/j.jdin.2021.06.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/14/2021] [Indexed: 10/30/2022] Open
Abstract
Introduction Pruritus is a common symptom across various dermatologic conditions, with a negative impact on quality of life. Devices to quantify itch objectively primarily use scratch as a proxy. This review compares and evaluates the performance of technologies aimed at objectively measuring scratch behavior. Methods Articles identified from literature searches performed in October 2020 were reviewed and those that did not report a primary statistical performance measure (eg, sensitivity, specificity) were excluded. The articles were independently reviewed by 2 authors. Results The literature search resulted in 6231 articles, of which 24 met eligibility criteria. Studies were categorized by technology, with actigraphy being the most studied (n = 21). Wrist actigraphy's performance is poorer in pruritic patients and inherently limited in finger-dominant scratch detection. It has moderate correlations with objective measures (Eczema and Area Severity Index/Investigator's Global Assessment: rs(ρ) = 0.70-0.76), but correlations with subjective measures are poor (r2 = 0.06, rs(ρ) = 0.18-0.40 for itch measured using a visual analog scale). This may be due to varied subjective perception of itch or actigraphy's underestimation of scratch. Conclusion Actigraphy's large variability in performance and limited understanding of its specificity for scratch merits larger studies looking at validation of data analysis algorithms and device performance, particularly within target patient populations.
Collapse
Affiliation(s)
- Albert F Yang
- University of Illinois at Chicago College of Medicine, Chicago, Illinois.,Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Morgan Nguyen
- Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Alvin W Li
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Brad Lee
- Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Keum San Chun
- Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas
| | - Ellen Wu
- Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Anna B Fishbein
- Department of Pediatrics (Allergy and Immunology), Ann & Robert H. Lurie Children's Hospital, Chicago, Illinois
| | - Amy S Paller
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois.,Department of Pediatrics (Dermatology), Ann & Robert H. Lurie Children's Hospital, Chicago, Illinois.,Center for Bio-Integrated Electronics, Evanston, Illinois
| | - Shuai Xu
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois.,Center for Bio-Integrated Electronics, Evanston, Illinois.,Querrey Simpson Institute for Bioelectronics, Evanston, Illinois.,Department of Biomedical Engineering, Northwestern University, Evanston, Illinois
| |
Collapse
|
8
|
Jeong H, Lee JY, Lee K, Kang YJ, Kim JT, Avila R, Tzavelis A, Kim J, Ryu H, Kwak SS, Kim JU, Banks A, Jang H, Chang JK, Li S, Mummidisetty CK, Park Y, Nappi S, Chun KS, Lee YJ, Kwon K, Ni X, Chung HU, Luan H, Kim JH, Wu C, Xu S, Banks A, Jayaraman A, Huang Y, Rogers JA. Differential cardiopulmonary monitoring system for artifact-canceled physiological tracking of athletes, workers, and COVID-19 patients. Sci Adv 2021; 7:eabg3092. [PMID: 33980495 PMCID: PMC8115927 DOI: 10.1126/sciadv.abg3092] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 03/22/2021] [Indexed: 05/27/2023]
Abstract
Soft, skin-integrated electronic sensors can provide continuous measurements of diverse physiological parameters, with broad relevance to the future of human health care. Motion artifacts can, however, corrupt the recorded signals, particularly those associated with mechanical signatures of cardiopulmonary processes. Design strategies introduced here address this limitation through differential operation of a matched, time-synchronized pair of high-bandwidth accelerometers located on parts of the anatomy that exhibit strong spatial gradients in motion characteristics. When mounted at a location that spans the suprasternal notch and the sternal manubrium, these dual-sensing devices allow measurements of heart rate and sounds, respiratory activities, body temperature, body orientation, and activity level, along with swallowing, coughing, talking, and related processes, without sensitivity to ambient conditions during routine daily activities, vigorous exercises, intense manual labor, and even swimming. Deployments on patients with COVID-19 allow clinical-grade ambulatory monitoring of the key symptoms of the disease even during rehabilitation protocols.
Collapse
Affiliation(s)
- Hyoyoung Jeong
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Jong Yoon Lee
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Sibel Health, Niles, IL 60714, USA
| | - KunHyuck Lee
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Youn J Kang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Jin-Tae Kim
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Raudel Avila
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Andreas Tzavelis
- Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Joohee Kim
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Hanjun Ryu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Sung Soo Kwak
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Jong Uk Kim
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- School of Chemical Engineering, SKKU, Suwon 16419, Republic of Korea
| | - Aaron Banks
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Hokyung Jang
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | | | - Shupeng Li
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Chaithanya K Mummidisetty
- Max Nader Center for Rehabilitation Technologies and Outcomes Research, Shirley Ryan AbilityLab, Chicago, IL 60611, USA
| | - Yoonseok Park
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Simone Nappi
- Department of Civil Engineering and Computer Science Engineering, University of Rome Tor Vergata, Via del Politecnico, 1, 00133, Rome, Italy
| | - Keum San Chun
- Electrical and Computer Engineering, Cockrell School of Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - Young Joong Lee
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Kyeongha Kwon
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Xiaoyue Ni
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | | | - Haiwen Luan
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Jae-Hwan Kim
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Changsheng Wu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
| | - Shuai Xu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Sibel Health, Niles, IL 60714, USA
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Anthony Banks
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Wearifi Inc., Evanston, IL 60201, USA
| | - Arun Jayaraman
- Max Nader Center for Rehabilitation Technologies and Outcomes Research, Shirley Ryan AbilityLab, Chicago, IL 60611, USA
- Departments of Physical Medicine and Rehabilitation and Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Yonggang Huang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA
| | - John A Rogers
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA.
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Departments of Electrical and Computer Engineering and Chemistry, Northwestern University, Evanston, IL 60208, USA
- Department of Neurological Surgery, Northwestern University, Evanston, IL 60208, USA
| |
Collapse
|
9
|
Chun KS, Kang YJ, Lee JY, Nguyen M, Lee B, Lee R, Jo HH, Allen E, Chen H, Kim J, Yu L, Ni X, Lee K, Jeong H, Lee J, Park Y, Chung HU, Li AW, Lio PA, Yang AF, Fishbein AB, Paller AS, Rogers JA, Xu S. A skin-conformable wireless sensor to objectively quantify symptoms of pruritus. Sci Adv 2021; 7:7/18/eabf9405. [PMID: 33931455 PMCID: PMC8087407 DOI: 10.1126/sciadv.abf9405] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 03/15/2021] [Indexed: 05/27/2023]
Abstract
Itch is a common clinical symptom and major driver of disease-related morbidity across a wide range of medical conditions. A substantial unmet need is for objective, accurate measurements of itch. In this article, we present a noninvasive technology to objectively quantify scratching behavior via a soft, flexible, and wireless sensor that captures the acousto-mechanic signatures of scratching from the dorsum of the hand. A machine learning algorithm validated on data collected from healthy subjects (n = 10) indicates excellent performance relative to smartwatch-based approaches. Clinical validation in a cohort of predominately pediatric patients (n = 11) with moderate to severe atopic dermatitis included 46 sleep-nights totaling 378.4 hours. The data indicate an accuracy of 99.0% (84.3% sensitivity, 99.3% specificity) against visual observation. This work suggests broad capabilities relevant to applications ranging from assessing the efficacy of drugs for conditions that cause itch to monitoring disease severity and treatment response.
Collapse
Affiliation(s)
- Keum San Chun
- Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - Youn J Kang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
| | - Jong Yoon Lee
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Sibel Health, Niles, IL 60714, USA
| | - Morgan Nguyen
- Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Brad Lee
- Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | | | | | - Emily Allen
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Hope Chen
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
| | | | - Lian Yu
- Electrical and Computer Engineering, University of Illinois at Champaign-Urbana, Champaign, IL 61801, USA
| | - Xiaoyue Ni
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - KunHyuck Lee
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
| | - Hyoyoung Jeong
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
| | | | - Yoonseok Park
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
| | - Ha Uk Chung
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Sibel Health, Niles, IL 60714, USA
| | - Alvin W Li
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Peter A Lio
- Chicago Eczema Center, Chicago, IL 60654, USA
| | - Albert F Yang
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Anna B Fishbein
- Department of Pediatrics (Allergy and Immunology), Ann & Robert H. Lurie Children's Hospital, Chicago, IL 60611, USA
| | - Amy S Paller
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Pediatrics (Dermatology), Ann & Robert H. Lurie Children's Hospital, Chicago, IL 60611, USA
| | - John A Rogers
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA.
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Shuai Xu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA.
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Department of Pediatrics (Allergy and Immunology), Ann & Robert H. Lurie Children's Hospital, Chicago, IL 60611, USA
- Department of Pediatrics (Dermatology), Ann & Robert H. Lurie Children's Hospital, Chicago, IL 60611, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| |
Collapse
|
10
|
Park Y, Kwon K, Kwak SS, Yang DS, Kwak JW, Luan H, Chung TS, Chun KS, Kim JU, Jang H, Ryu H, Jeong H, Won SM, Kang YJ, Zhang M, Pontes D, Kampmeier BR, Seo SH, Zhao J, Jung I, Huang Y, Xu S, Rogers JA. Wireless, skin-interfaced sensors for compression therapy. Sci Adv 2020; 6:6/49/eabe1655. [PMID: 33277263 PMCID: PMC7821894 DOI: 10.1126/sciadv.abe1655] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 10/20/2020] [Indexed: 05/23/2023]
Abstract
Therapeutic compression garments (TCGs) are key tools for the management of a wide range of vascular lower extremity conditions. Proper use of TCGs involves application of a minimum and consistent pressure across the lower extremities for extended periods of time. Slight changes in the characteristics of the fabric and the mechanical properties of the tissues lead to requirements for frequent measurements and corresponding adjustments of the applied pressure. Existing sensors are not sufficiently small, thin, or flexible for practical use in this context, and they also demand cumbersome, hard-wired interfaces for data acquisition. Here, we introduce a flexible, wireless monitoring system for tracking both temperature and pressure at the interface between the skin and the TCGs. Detailed studies of the materials and engineering aspects of these devices, together with clinical pilot trials on a range of patients with different pathologies, establish the technical foundations and measurement capabilities.
Collapse
Affiliation(s)
- Yoonseok Park
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
| | - Kyeongha Kwon
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Sung Soo Kwak
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Da Som Yang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
| | - Jean Won Kwak
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Haiwen Luan
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Ted S Chung
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Keum San Chun
- Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - Jong Uk Kim
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Hokyung Jang
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Hanjun Ryu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
| | - Hyoyoung Jeong
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
| | - Sang Min Won
- Department of Electrical and Computer Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Youn J Kang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
| | - Michael Zhang
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
| | - David Pontes
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
| | - Brianna R Kampmeier
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
| | - Seon Hee Seo
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Nano Hybrid Technology Research Center, Creative and Fundamental Research Division, Korea Electrotechnology Research Institute (KERI), Changwon 51543, Republic of Korea
| | - Jeffrey Zhao
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Inhwa Jung
- Department of Mechanical Engineering, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Yonggang Huang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Shuai Xu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA.
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - John A Rogers
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL 60208, USA
- Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA.
- Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| |
Collapse
|
11
|
Chun KS, Jeong H, Adaimi R, Thomaz E. Eating Episode Detection with Jawbone-Mounted Inertial Sensing. Annu Int Conf IEEE Eng Med Biol Soc 2020; 2020:4361-4364. [PMID: 33018961 DOI: 10.1109/embc44109.2020.9175949] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Recent work in Automated Dietary Monitoring (ADM) has shown promising results in eating detection by tracking jawbone movements with a proximity sensor mounted on a necklace. A significant challenge with this approach, however, is that motion artifacts introduced by natural body movements cause the necklace to move freely and the sensor to become misaligned. In this paper, we propose a different but related approach: we developed a small wireless inertial sensing platform and perform eating detection by mounting the sensor directly on the underside of the jawbone. We implemented a data analysis pipeline to recognize eating episodes from the inertial sensor data, and evaluated our approach in two different conditions: in the laboratory and in naturalistic settings. We demonstrated that in the lab (n=9), the system can detect eating with 91.7% precision and 91.3% recall using the leave-one-participant-out cross-validation (LOPO-CV) performance metric. In naturalistic settings, we obtained an average precision of 92.3% and a recall of 89.0% (n=14). These results represent a significant improvement (>10% in F1 score) over state-of-the-art necklace-based approaches. Additionally, this work presents a wearable device that is more inconspicuous and thus more likely to be adopted in clinical applications.
Collapse
|
12
|
Chun KS, Sanders AB, Adaimi R, Streeper N, Conroy DE, Thomaz E. Towards a Generalizable Method for Detecting Fluid Intake with Wrist-Mounted Sensors and Adaptive Segmentation. IUI 2019; 2019:80-85. [PMID: 31032488 PMCID: PMC6485933 DOI: 10.1145/3301275.3302315] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Over the last decade, advances in mobile technologies have enabled the development of intelligent systems that attempt to recognize and model a variety of health-related human behaviors. While automated dietary monitoring based on passive sensors has been an area of increasing research activity for many years, much less attention has been given to tracking fluid intake. In this work, we apply an adaptive segmentation technique on a continuous stream of inertial data captured with a practical, off-the-shelf wrist-mounted device to detect fluid intake gestures passively. We evaluated our approach in a study with 30 participants where 561 drinking instances were recorded. Using a leave-one-participant-out (LOPO), we were able to detect drinking episodes with 90.3% precision and 91.0% recall, demonstrating the generalizability of our approach. In addition to our proposed method, we also contribute an anonymized and labeled dataset of drinking and non-drinking gestures to encourage further work in the field.
Collapse
Affiliation(s)
| | - Ashley B Sanders
- The Pennsylvania State University, University Park, Pennsylvania,
| | | | - Necole Streeper
- The Pennsylvania State University, University Park, Pennsylvania,
| | - David E Conroy
- The Pennsylvania State University, University Park, Pennsylvania,
| | | |
Collapse
|
13
|
Nimunkar AJ, Chun KS, Phung N, Wreksoatmodjo K, Yen TY, Radwin RG. Reducing thumb extensor risk in laboratory rat gavage. Appl Ergon 2017; 58:151-155. [PMID: 27633208 DOI: 10.1016/j.apergo.2016.06.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 06/07/2016] [Accepted: 06/14/2016] [Indexed: 06/06/2023]
Abstract
Gavage is a common technique for orally administering compounds to small laboratory animals using a syringe. It involves highly repetitive thumb extensor exertions for filling the syringe, a risk factor for DeQuervain's tenosynovitis. As an intervention, a series of bench tests were performed varying fluid viscosity, syringe size and needle size to determine the forces required for drawing fluid. Forces up to 28 N were observed for a viscosity of 0.29 Pa s. A guide is presented to minimize thumb forces for a particular combination of syringe (3 mL, 5 mL and 10 mL), fluid viscosity (0.001 Pa s, 0.065 Pa s, 0.21 and 0.29 Pa s), and needle length (52 mm, 78 mm and 100 mm) based on maximum acceptable exertion levels. In general, a small syringe and large needle size had a greater number of acceptable rat gavages per day due to the lower forces experienced as compared to all other syringe and needle combinations.
Collapse
Affiliation(s)
- Amit J Nimunkar
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Keum San Chun
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Ngoc Phung
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Kevin Wreksoatmodjo
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Thomas Y Yen
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; Department of Industrial and Systems Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Robert G Radwin
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; Department of Industrial and Systems Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA.
| |
Collapse
|
14
|
Kim SS, Chun KS, Choi JW, Kim SK, Cho WJ. The effects of container materials and buffer additives on decreasing the iodide concentration in a disposal vault for spent nuclear fuel. J Environ Sci Health A Tox Hazard Subst Environ Eng 2007; 42:39-43. [PMID: 17129946 DOI: 10.1080/10934520601015461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
To retard the migration of iodine released from a spent fuel after the break of a container, the reducing effects on the concentration of the iodide by container corrosion products and some buffer additives were examined in a solution with bentonite. Iron and copper, and their corrosion products scarcely reduced the iodide concentration. And kaolinite, chalcopyrite, pyrite, copper ore and galena, known as having a sorption property for iodine, did not noticeably sorb the iodide. However, palm active carbon, silver metal and Ag2O lowered the iodide concentration. Especially, Ag2O put into a disposal container would effectively hinder the migration of iodine to the outside of a disposal vault without a great loss if the pore size of the compacted buffer layer is maintained below 1 mu m.
Collapse
Affiliation(s)
- S S Kim
- Radwaste Disposal Division, Korea Atomic Energy Research Institute, Daejon, Korea.
| | | | | | | | | |
Collapse
|
15
|
Ruth TJ, Buckle KR, Chun KS, Hurtado ET, Jivan S, Zeisler S. A proof of principle for targetry to produce ultra high quantities of 18F-fluoride. Appl Radiat Isot 2001; 55:457-61. [PMID: 11545497 DOI: 10.1016/s0969-8043(01)00074-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The production of 18F-fluoride from a gas target which utilizes the (18)O(p,n)18F reaction is described. Proof-of-principle experiments demonstrate that it is possible to design and build such a target that can be used routinely to produce terabecquerel (curie) quantities of 18F when operated at 100 microA.
Collapse
Affiliation(s)
- T J Ruth
- PET Chemistry, TRIUMF, Vancouver, BC, Canada.
| | | | | | | | | | | |
Collapse
|
16
|
Surh YJ, Chun KS, Cha HH, Han SS, Keum YS, Park KK, Lee SS. Molecular mechanisms underlying chemopreventive activities of anti-inflammatory phytochemicals: down-regulation of COX-2 and iNOS through suppression of NF-kappa B activation. Mutat Res 2001; 480-481:243-68. [PMID: 11506818 DOI: 10.1016/s0027-5107(01)00183-x] [Citation(s) in RCA: 1120] [Impact Index Per Article: 48.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A wide array of phenolic substances, particularly those present in edible and medicinal plants, have been reported to possess substantial anticarcinogenic and antimutagenic activities. The majority of naturally occurring phenolics retain antioxidative and anti-inflammatory properties which appear to contribute to their chemopreventive or chemoprotective activity. Cyclooxygenase-2 (COX-2) inducible and nitric oxide synthase (iNOS) are important enzymes that mediate inflammatory processes. Improper up-regulation of COX-2 and/or iNOS has been associated with pathophysiology of certain types of human cancers as well as inflammatory disorders. Since inflammation is closely linked to tumor promotion, substances with potent anti-inflammatory activities are anticipated to exert chemopreventive effects on carcinogenesis, particularly in the promotion stage. Examples are curcumin, a yellow pigment of turmeric (Curcuma longa L., Zingiberaceae), the green tea polyphenol epigallocatechin gallate (EGCG), and resveratrol from grapes (Vitis vinifera, Vitaceae) that strongly suppress tumor promotion. Recent studies have demonstrated that eukaryotic transcription factor nuclear factor-kappa B (NF-kappa B) is involved in regulation of COX-2 and iNOS expression. Several chemopreventive phytochemicals have been shown to inhibit COX-2 and iNOS expression by blocking improper NF-kappa B activation. Multiple lines of compelling evidence indicate that extracellular-regulated protein kinase and p38 mitogen-activated protein kinase are key elements of the intracellular signaling cascades responsible for NF-kappa B activation in response to a wide array of external stimuli. Curcumin, EGCG and resveratrol have been shown to suppress activation of NF-kappa B. One of the plausible mechanisms underlying inhibition of NF-kappa B activation by aforementioned phytochemicals involves repression of degradation of the inhibitory unit I kappa B alpha, which hampers subsequent nuclear translocation of the functionally active subunit of NF-kappa B.
Collapse
Affiliation(s)
- Y J Surh
- College of Pharmacy, Seoul National University, Shinlim-dong, Kwanak-ku, Seoul 151-742, South Korea.
| | | | | | | | | | | | | |
Collapse
|
17
|
Han SS, Keum YS, Seo HJ, Chun KS, Lee SS, Surh YJ. Capsaicin suppresses phorbol ester-induced activation of NF-kappaB/Rel and AP-1 transcription factors in mouse epidermis. Cancer Lett 2001; 164:119-26. [PMID: 11179825 DOI: 10.1016/s0304-3835(01)00378-0] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Capsaicin, the principal pungent ingredient of hot chili peppers, has anti-inflammatory and analgesic properties and is currently used as a topical cream for the management of various neuropathic conditions. In the present study, topical application of capsaicin onto dorsal skin of female ICR mice strongly suppressed phorbol ester-stimulated activation of NF-kappaB via blockade of IkappaB-alpha degradation with subsequent inhibition of nuclear translocation of the functionally active NF-kappaB subunit, p65. Likewise, phorbol ester-induced activation of activator protein-1 (AP-1) was abolished by capsaicin pretreatment. Since altered transactivation of NF-kappaB and AP-1 has been implicated for neoplastic transformation and progression, the suppression of these transcription factors by capsaicin may account for its previously reported chemopreventive effects on mouse skin tumorigenesis as well as inflammation.
Collapse
Affiliation(s)
- S S Han
- College of Pharmacy, Seoul National University, Shinlim-dong, Kwanak-gu, 151-742, Seoul, South Korea
| | | | | | | | | | | |
Collapse
|
18
|
Keum YS, Park KK, Lee JM, Chun KS, Park JH, Lee SK, Kwon H, Surh YJ. Antioxidant and anti-tumor promoting activities of the methanol extract of heat-processed ginseng. Cancer Lett 2000; 150:41-8. [PMID: 10755385 DOI: 10.1016/s0304-3835(99)00369-9] [Citation(s) in RCA: 250] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heat treatment of Panax ginseng C.A. Meyer at a temperature higher than that applied to the conventional preparation of red ginseng yielded a mixture of saponins with potent antioxidative properties. Thus, the methanol extract of heat-processed neoginseng (designated as 'NGMe') attenuated lipid peroxidation in rat brain homogenates induced by ferric ion or ferric ion plus ascorbic acid. Furthermore, the extract protected against strand scission in phiX174 supercoiled DNA induced by UV photolysis of H2O2, and was also capable of scavenging superoxide generated by xanthine-xanthine oxidase or by 12-O-tetradecanoylphorbol-13-acetate (TPA) in differentiated human promyelocytic leukemia (HL-60) cells. Topical application of NGMe onto shaven backs of female ICR mice 10 min prior to TPA, significantly ameliorated skin papillomagenesis initiated by 7,12-dimethylbenz[a]anthracene. Moreover, TPA-induced enhancement of epidermal ornithine decarboxylase (ODC) activity and ODC mRNA expression was abolished by a topical dose (0.68 mg) of NGMe. Likewise, TPA-induced production of tumor necrosis factor- in mouse skin was inhibited by NGMe pretreatment.
Collapse
MESH Headings
- 9,10-Dimethyl-1,2-benzanthracene/adverse effects
- Animals
- Anticarcinogenic Agents/pharmacology
- Antioxidants/pharmacology
- Bacteriophage phi X 174/genetics
- Brain/drug effects
- Brain/metabolism
- Carcinogens/adverse effects
- DNA, Viral/drug effects
- DNA, Viral/genetics
- DNA, Viral/radiation effects
- Enzyme Activation/drug effects
- Female
- Gene Expression Regulation, Enzymologic/drug effects
- HL-60 Cells
- Hot Temperature
- Humans
- Hydrogen Peroxide/adverse effects
- Lipid Peroxidation/drug effects
- Male
- Methanol
- Mice
- Mice, Inbred ICR
- Ornithine Decarboxylase/drug effects
- Ornithine Decarboxylase/genetics
- Ornithine Decarboxylase/metabolism
- Panax/chemistry
- Papilloma/chemically induced
- Papilloma/prevention & control
- Plant Extracts/chemistry
- Plant Extracts/pharmacology
- Plants, Medicinal
- RNA, Messenger/drug effects
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Rats
- Rats, Sprague-Dawley
- Skin/drug effects
- Skin/metabolism
- Skin/pathology
- Skin Neoplasms/chemically induced
- Skin Neoplasms/prevention & control
- Superoxides/metabolism
- Tetradecanoylphorbol Acetate/adverse effects
- Tumor Necrosis Factor-alpha/drug effects
- Tumor Necrosis Factor-alpha/metabolism
- Ultraviolet Rays/adverse effects
Collapse
Affiliation(s)
- Y S Keum
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, South Korea
| | | | | | | | | | | | | | | |
Collapse
|
19
|
Chun KS, Sohn Y, Kim HS, Kim OH, Park KK, Lee JM, Moon A, Lee SS, Surh YJ. Anti-tumor promoting potential of naturally occurring diarylheptanoids structurally related to curcumin. Mutat Res 1999; 428:49-57. [PMID: 10517978 DOI: 10.1016/s1383-5742(99)00031-9] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In recent years, there have been considerable efforts to search for naturally occurring substances for intervention of carcinogenesis. Many components from medicinal or dietary plants have been identified to possess potential chemopreventive properties. For instance, curcumin, a yellow colouring agent from turmeric (Curcuma longa Linn., Zingiberaceae) has been shown to inhibit tumor formation in diverse animal models. Alpinia oxyphylla Miquel that also belongs to ginger family has been used in oriental herbal medicine. In the present work, we have evaluated the anti-tumor promoting potential of yakuchinone A (1-[4'-hydroxy-3'-methoxyphenyl]-7-phenyl-3-heptanone) and yakuchinone B (1-[4'-hydroxy-3'-methoxyphenyl]-7-phenylhept-1-en-3-one), major pungent ingredients of A. oxyphylla. Thus, topical application of yakuchinone A or B significantly suppressed TPA-induced epidermal ornithine decarboxylase activity. They also reduced TPA-stimulated production of tumor necrosis factor-alpha in cultured human promyelocytic leukemia (HL-60) cells. Both compounds blunted the TPA-induced superoxide generation in differentiated HL-60 cells in a concentration-related manner and also inhibited lipid peroxidation in rat brain homogenates. Furthermore, yakuchinone A and yakuchinone B nullified the activation of the activator protein-1 (AP-1) in immortalized mouse fibroblast cells in culture. These findings indicate that pungent diarylheptanoids from A. oxyphylla have anti-tumor promotional properties that can contribute to their chemopreventive potential.
Collapse
Affiliation(s)
- K S Chun
- College of Pharmacy, Seoul National University, Shinlim-dong, Kwanak-gu, Seoul, South Korea
| | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Surh YJ, Park KK, Chun KS, Lee LJ, Lee E, Lee SS. Anti-tumor-promoting activities of selected pungent phenolic substances present in ginger. J Environ Pathol Toxicol Oncol 1999; 18:131-9. [PMID: 15281225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023] Open
Abstract
Ginger (Zingiber officinale Roscoe, Zingiberaceae) has been widely used as a dietary spice, as well as in traditional oriental medicine. The rhizome of ginger contains pungent vanillyl ketones, including [6]-gingerol and [6]-paradol, and has been reported to possess a strong anti-inflammatory activity. These pungent substances have a vanilloid structure found in other chemopreventive phytochemicals, including curcumin. In our study, we found anti-tumor-promoting properties of [6]-gingerol and [6]-paradol. Thus, topical application of [6]-gingerol or [6]-paradol 30 min prior to 12-O-tetradecanoyl-phorbol-13-acetate (TPA) attenuated the skin papillomagenesis initiated by 7,12-dimethylbenz[a]anthracene in female ICR mice. These substances also significantly inhibited the tumor-promoter-stimulated inflammation, TNF-alpha production, and activation of epidermal ornithine decarboxylase in mice. In another study, [6]-gingerol and [6]-paradol suppressed the superoxide production stimulated by TPA in differentiated HL-60 cells. Taken together, these findings suggest that pungent vanilloids found in ginger possess potential chemopreventive activities.
Collapse
Affiliation(s)
- Y J Surh
- College of Pharmacy, Seoul National University, Seoul, South Korea
| | | | | | | | | | | |
Collapse
|
21
|
Park KK, Chun KS, Yook JI, Surh YJ. Lack of tumor promoting activity of capsaicin, a principal pungent ingredient of red pepper, in mouse skin carcinogenesis. Anticancer Res 1998; 18:4201-5. [PMID: 9891468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Capsaicin (trans-8-methyl-N-vanillyl-6-nonenamide) is the major pungent principle of hot peppers of the genus Capsicum. There have been numerous investigations to evaluate the effects of capsaicin on experimental carcinogenesis and mutagenesis, but the results are discordant. In the present study, we have assessed the tumor promoting potential of capsaicin using a two stage mouse skin carcinogenesis model. Repeated applications of capsaicin (10 mumol) onto the shaven backs of female ICR mice following a single-initiation dose of 7,12-dimethylbenz[alpha]anthracene did not cause any significant increase in papilloma formation and abnormal hyperplastic or inflammatory skin lesions, compared with the solvent control. Furthermore, the topical application of capsaicin did not induce the epidermal ornithine decarboxylase activity, suggesting that it lacks tumor-promotional activity. On the contrary, the compound ameliorated the mouse skin carcinogenesis when given simultaneously with the tumor promoter, 12-O-tetradecanoylphorbol-13-acetate.
Collapse
Affiliation(s)
- K K Park
- Yonsei University College of Dentistry, Seoul, South Korea
| | | | | | | |
Collapse
|
22
|
Lee E, Park KK, Lee JM, Chun KS, Kang JY, Lee SS, Surh YJ. Suppression of mouse skin tumor promotion and induction of apoptosis in HL-60 cells by Alpinia oxyphylla Miquel (Zingiberaceae). Carcinogenesis 1998; 19:1377-81. [PMID: 9744532 DOI: 10.1093/carcin/19.8.1377] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
There have been considerable efforts to search for naturally occurring substances for the intervention of carcinogenesis. Many components from dietary or medicinal plants have been identified that possess substantial chemopreventive properties. An example is curcumin (Curcuma longa Linn., Zingiberaceae), which has been shown to inhibit tumor promotion in experimental carcinogenesis. Alpinia oxyphylla Miquel, another plant of the ginger family used in oriental herbal medicine, contains diarylheptanoids whose structures are analogous to that of curcumin. In the present study, we have tested A.oxyphylla for its ability to suppress tumor promotion. Thus, topical application of the methanolic extract of dried fruits of A.oxyphylla significantly ameliorated 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced skin tumor promotion as well as ear edema in female ICR mice. In another study, treatment of HL-60 cells with the methanolic extract of A.oxyphylla significantly reduced the viability of the cells and also inhibited DNA synthesis. Microscopic examination of the treated cells showed characteristic morphology of apoptosis. Furthermore, cells treated with the extract of A.oxyphylla exhibited internucleosomal DNA fragmentation in time- and concentration-dependent manners. TPA-stimulated generation of superoxide anion in differentiated HL-60 cells was also blunted by A.oxyphylla. Taken together, these findings suggest that A.oxyphylla possesses potential chemopreventive and antitumorigenic activities.
Collapse
Affiliation(s)
- E Lee
- College of Pharmacy, Seoul National University, Korea
| | | | | | | | | | | | | |
Collapse
|
23
|
Park KK, Chun KS, Lee JM, Lee SS, Surh YJ. Inhibitory effects of [6]-gingerol, a major pungent principle of ginger, on phorbol ester-induced inflammation, epidermal ornithine decarboxylase activity and skin tumor promotion in ICR mice. Cancer Lett 1998; 129:139-44. [PMID: 9719454 DOI: 10.1016/s0304-3835(98)00081-0] [Citation(s) in RCA: 181] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A wide array of phytochemicals have been shown to possess potential cancer chemopreventive properties. Ginger contains pungent phenolic substances with pronounced antioxidative and antiinflammatory activities. In the present study, we have determined the antitumor promotional activity of [6]-gingerol, a major pungent principle of ginger, using a two-stage mouse skin carcinogenesis model. Topical application of [6]-gingerol onto shaven backs of female ICR mice prior to each topical dose of 12-O-tetradecanoylphorbol-13-acetate (TPA) significantly inhibited 7,12-dimethylbenz[a]anthracene-induced skin papillomagenesis. The compound also suppressed TPA-induced epidermal ornithine decarboxylase activity and inflammation.
Collapse
Affiliation(s)
- K K Park
- Yonsei University College of Dentistry, Seoul, South Korea
| | | | | | | | | |
Collapse
|
24
|
Lee HW, Lim YS, Song IJ, Chun KS. [A study of self-esteem and professional attitudes of middle level managers]. Taehan Kanho 1988; 27:69-78. [PMID: 3357312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|