An in vivo microanalytical technique for measuring the local biochemical milieu of human skeletal muscle
1 Rehabilitation Medicine Department, Clinical Research Center, National Institutes of Health; 2 Ultramicro Analytical Immunochemistry Resource, Division of Bioengineering and Physical Science, Office of Research Services, National Institutes of Health, Bethesda, Maryland; and 3 Department of Exerci...
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| Veröffentlicht in: | Journal of applied physiology (1985) 2005-11, Vol.99 (5), p.1977-1984 |
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| container_end_page | 1984 |
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| container_issue | 5 |
| container_start_page | 1977 |
| container_title | Journal of applied physiology (1985) |
| container_volume | 99 |
| creator | Shah, Jay P Phillips, Terry M Danoff, Jerome V Gerber, Lynn H |
| description | 1 Rehabilitation Medicine Department, Clinical Research Center, National Institutes of Health; 2 Ultramicro Analytical Immunochemistry Resource, Division of Bioengineering and Physical Science, Office of Research Services, National Institutes of Health, Bethesda, Maryland; and 3 Department of Exercise Science, George Washington University, Washington, DC
Submitted 14 April 2005
; accepted in final form 11 July 2005
Myofascial pain associated with myofascial trigger points (MTrPs) is a common cause of nonarticular musculoskeletal pain. Although the presence of MTrPs can be determined by soft tissue palpation, little is known about the mechanisms and biochemical milieu associated with persistent muscle pain. A microanalytical system was developed to measure the in vivo biochemical milieu of muscle in near real time at the subnanogram level of concentration. The system includes a microdialysis needle capable of continuously collecting extremely small samples ( 0.5 µl) of physiological saline after exposure to the internal tissue milieu across a 105-µm-thick semi-permeable membrane. This membrane is positioned 200 µm from the tip of the needle and permits solutes of |
| doi_str_mv | 10.1152/japplphysiol.00419.2005 |
| format | Article |
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Submitted 14 April 2005
; accepted in final form 11 July 2005
Myofascial pain associated with myofascial trigger points (MTrPs) is a common cause of nonarticular musculoskeletal pain. Although the presence of MTrPs can be determined by soft tissue palpation, little is known about the mechanisms and biochemical milieu associated with persistent muscle pain. A microanalytical system was developed to measure the in vivo biochemical milieu of muscle in near real time at the subnanogram level of concentration. The system includes a microdialysis needle capable of continuously collecting extremely small samples ( 0.5 µl) of physiological saline after exposure to the internal tissue milieu across a 105-µm-thick semi-permeable membrane. This membrane is positioned 200 µm from the tip of the needle and permits solutes of <75 kDa to diffuse across it. Three subjects were selected from each of three groups (total 9 subjects): normal (no neck pain, no MTrP); latent (no neck pain, MTrP present); active (neck pain, MTrP present). The microdialysis needle was inserted in a standardized location in the upper trapezius muscle. Due to the extremely small sample size collected by the microdialysis system, an established microanalytical laboratory, employing immunoaffinity capillary electrophoresis and capillary electrochromatography, performed analysis of selected analytes. Concentrations of protons, bradykinin, calcitonin gene-related peptide, substance P, tumor necrosis factor- , interleukin-1 , serotonin, and norepinephrine were found to be significantly higher in the active group than either of the other two groups ( P < 0.01). pH was significantly lower in the active group than the other two groups ( P < 0.03). In conclusion, the described microanalytical technique enables continuous sampling of extremely small quantities of substances directly from soft tissue, with minimal system perturbation and without harmful effects on subjects. The measured levels of analytes can be used to distinguish clinically distinct groups.
myofascial trigger points; musculoskeletal pain; microdialysis; soft tissue pain; pressure pain threshold
Address for reprint requests and other correspondence: J. P. Shah, Rehabilitation Medicine, NIH, Bethesda, MD 20814 (e-mail: jshah{at}mail.cc.nih.gov )</description><identifier>ISSN: 8750-7587</identifier><identifier>EISSN: 1522-1601</identifier><identifier>DOI: 10.1152/japplphysiol.00419.2005</identifier><identifier>PMID: 16037403</identifier><identifier>CODEN: JAPHEV</identifier><language>eng</language><publisher>Bethesda, MD: Am Physiological Soc</publisher><subject>Biochemistry ; Biological and medical sciences ; Bradykinin - metabolism ; Calcitonin Gene-Related Peptide - metabolism ; Electromyography ; Fundamental and applied biological sciences. Psychology ; Human subjects ; Humans ; Hydrogen-Ion Concentration ; Measurement techniques ; Microdialysis - instrumentation ; Microdialysis - methods ; Muscle Contraction - physiology ; Muscle, Skeletal - metabolism ; Muscle, Skeletal - physiopathology ; Muscular system ; Norepinephrine - metabolism ; Pain ; Pain Threshold - physiology ; Serotonin - metabolism ; Substance P - metabolism ; Tumor Necrosis Factor-alpha - metabolism</subject><ispartof>Journal of applied physiology (1985), 2005-11, Vol.99 (5), p.1977-1984</ispartof><rights>2006 INIST-CNRS</rights><rights>Copyright American Physiological Society Nov 2005</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c512t-ddacfeb8f604b1a14d54ee0ba9c181d2d945beedb939f73bc2a60be1faf82c463</citedby><cites>FETCH-LOGICAL-c512t-ddacfeb8f604b1a14d54ee0ba9c181d2d945beedb939f73bc2a60be1faf82c463</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,3040,27926,27927</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17227132$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16037403$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Shah, Jay P</creatorcontrib><creatorcontrib>Phillips, Terry M</creatorcontrib><creatorcontrib>Danoff, Jerome V</creatorcontrib><creatorcontrib>Gerber, Lynn H</creatorcontrib><title>An in vivo microanalytical technique for measuring the local biochemical milieu of human skeletal muscle</title><title>Journal of applied physiology (1985)</title><addtitle>J Appl Physiol (1985)</addtitle><description>1 Rehabilitation Medicine Department, Clinical Research Center, National Institutes of Health; 2 Ultramicro Analytical Immunochemistry Resource, Division of Bioengineering and Physical Science, Office of Research Services, National Institutes of Health, Bethesda, Maryland; and 3 Department of Exercise Science, George Washington University, Washington, DC
Submitted 14 April 2005
; accepted in final form 11 July 2005
Myofascial pain associated with myofascial trigger points (MTrPs) is a common cause of nonarticular musculoskeletal pain. Although the presence of MTrPs can be determined by soft tissue palpation, little is known about the mechanisms and biochemical milieu associated with persistent muscle pain. A microanalytical system was developed to measure the in vivo biochemical milieu of muscle in near real time at the subnanogram level of concentration. The system includes a microdialysis needle capable of continuously collecting extremely small samples ( 0.5 µl) of physiological saline after exposure to the internal tissue milieu across a 105-µm-thick semi-permeable membrane. This membrane is positioned 200 µm from the tip of the needle and permits solutes of <75 kDa to diffuse across it. Three subjects were selected from each of three groups (total 9 subjects): normal (no neck pain, no MTrP); latent (no neck pain, MTrP present); active (neck pain, MTrP present). The microdialysis needle was inserted in a standardized location in the upper trapezius muscle. Due to the extremely small sample size collected by the microdialysis system, an established microanalytical laboratory, employing immunoaffinity capillary electrophoresis and capillary electrochromatography, performed analysis of selected analytes. Concentrations of protons, bradykinin, calcitonin gene-related peptide, substance P, tumor necrosis factor- , interleukin-1 , serotonin, and norepinephrine were found to be significantly higher in the active group than either of the other two groups ( P < 0.01). pH was significantly lower in the active group than the other two groups ( P < 0.03). In conclusion, the described microanalytical technique enables continuous sampling of extremely small quantities of substances directly from soft tissue, with minimal system perturbation and without harmful effects on subjects. The measured levels of analytes can be used to distinguish clinically distinct groups.
myofascial trigger points; musculoskeletal pain; microdialysis; soft tissue pain; pressure pain threshold
Address for reprint requests and other correspondence: J. P. Shah, Rehabilitation Medicine, NIH, Bethesda, MD 20814 (e-mail: jshah{at}mail.cc.nih.gov )</description><subject>Biochemistry</subject><subject>Biological and medical sciences</subject><subject>Bradykinin - metabolism</subject><subject>Calcitonin Gene-Related Peptide - metabolism</subject><subject>Electromyography</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Human subjects</subject><subject>Humans</subject><subject>Hydrogen-Ion Concentration</subject><subject>Measurement techniques</subject><subject>Microdialysis - instrumentation</subject><subject>Microdialysis - methods</subject><subject>Muscle Contraction - physiology</subject><subject>Muscle, Skeletal - metabolism</subject><subject>Muscle, Skeletal - physiopathology</subject><subject>Muscular system</subject><subject>Norepinephrine - metabolism</subject><subject>Pain</subject><subject>Pain Threshold - physiology</subject><subject>Serotonin - metabolism</subject><subject>Substance P - metabolism</subject><subject>Tumor Necrosis Factor-alpha - metabolism</subject><issn>8750-7587</issn><issn>1522-1601</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kUFv1DAQhS0EotvCXwALiYrLLrZjx8mxqiggVeJSzpbjjDdenDjYScv-e5xuRBESJx_e92Y87yH0lpIdpYJ9POhx9GN3TC74HSGc1jtGiHiGNlllW1oS-hxtKinIVopKnqHzlA6EUM4FfYnOsl5ITooN6q4G7AZ87-4D7p2JQQ_aHydntMcTmG5wP2fANkTcg05zdMMeTx1gHxaiccF00D_SvfMOZhws7uZeDzj9AA_TIszJeHiFXljtE7xe3wv0_ebT3fWX7e23z1-vr263RlA2bdtWGwtNZUvCG6opbwUHII2uDa1oy9qaiwagbeqitrJoDNMlaYBabStmeFlcoMvT3DGG_PU0qd4lA97rAcKcVFmVtZAVyeC7f8BDmGO-PinGGK0YoQskT1BOJqUIVo3R9ToeFSVqaUL93YR6bEItTWTnm3X83PTQPvnW6DPwfgV0yvnZqAfj0hMnGZO0YJn7cOI6t-8eXAS1bgv747Jd1bUSitZSZpT_H72Zvb-DX9Pi-WNRY2uL3wkOuUo</recordid><startdate>20051101</startdate><enddate>20051101</enddate><creator>Shah, Jay P</creator><creator>Phillips, Terry M</creator><creator>Danoff, Jerome V</creator><creator>Gerber, Lynn H</creator><general>Am Physiological Soc</general><general>American Physiological Society</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QP</scope><scope>7QR</scope><scope>7TK</scope><scope>7TS</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>7X8</scope></search><sort><creationdate>20051101</creationdate><title>An in vivo microanalytical technique for measuring the local biochemical milieu of human skeletal muscle</title><author>Shah, Jay P ; Phillips, Terry M ; Danoff, Jerome V ; Gerber, Lynn H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c512t-ddacfeb8f604b1a14d54ee0ba9c181d2d945beedb939f73bc2a60be1faf82c463</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Biochemistry</topic><topic>Biological and medical sciences</topic><topic>Bradykinin - metabolism</topic><topic>Calcitonin Gene-Related Peptide - metabolism</topic><topic>Electromyography</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Human subjects</topic><topic>Humans</topic><topic>Hydrogen-Ion Concentration</topic><topic>Measurement techniques</topic><topic>Microdialysis - instrumentation</topic><topic>Microdialysis - methods</topic><topic>Muscle Contraction - physiology</topic><topic>Muscle, Skeletal - metabolism</topic><topic>Muscle, Skeletal - physiopathology</topic><topic>Muscular system</topic><topic>Norepinephrine - metabolism</topic><topic>Pain</topic><topic>Pain Threshold - physiology</topic><topic>Serotonin - metabolism</topic><topic>Substance P - metabolism</topic><topic>Tumor Necrosis Factor-alpha - metabolism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shah, Jay P</creatorcontrib><creatorcontrib>Phillips, Terry M</creatorcontrib><creatorcontrib>Danoff, Jerome V</creatorcontrib><creatorcontrib>Gerber, Lynn H</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Neurosciences Abstracts</collection><collection>Physical Education Index</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of applied physiology (1985)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shah, Jay P</au><au>Phillips, Terry M</au><au>Danoff, Jerome V</au><au>Gerber, Lynn H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An in vivo microanalytical technique for measuring the local biochemical milieu of human skeletal muscle</atitle><jtitle>Journal of applied physiology (1985)</jtitle><addtitle>J Appl Physiol (1985)</addtitle><date>2005-11-01</date><risdate>2005</risdate><volume>99</volume><issue>5</issue><spage>1977</spage><epage>1984</epage><pages>1977-1984</pages><issn>8750-7587</issn><eissn>1522-1601</eissn><coden>JAPHEV</coden><abstract>1 Rehabilitation Medicine Department, Clinical Research Center, National Institutes of Health; 2 Ultramicro Analytical Immunochemistry Resource, Division of Bioengineering and Physical Science, Office of Research Services, National Institutes of Health, Bethesda, Maryland; and 3 Department of Exercise Science, George Washington University, Washington, DC
Submitted 14 April 2005
; accepted in final form 11 July 2005
Myofascial pain associated with myofascial trigger points (MTrPs) is a common cause of nonarticular musculoskeletal pain. Although the presence of MTrPs can be determined by soft tissue palpation, little is known about the mechanisms and biochemical milieu associated with persistent muscle pain. A microanalytical system was developed to measure the in vivo biochemical milieu of muscle in near real time at the subnanogram level of concentration. The system includes a microdialysis needle capable of continuously collecting extremely small samples ( 0.5 µl) of physiological saline after exposure to the internal tissue milieu across a 105-µm-thick semi-permeable membrane. This membrane is positioned 200 µm from the tip of the needle and permits solutes of <75 kDa to diffuse across it. Three subjects were selected from each of three groups (total 9 subjects): normal (no neck pain, no MTrP); latent (no neck pain, MTrP present); active (neck pain, MTrP present). The microdialysis needle was inserted in a standardized location in the upper trapezius muscle. Due to the extremely small sample size collected by the microdialysis system, an established microanalytical laboratory, employing immunoaffinity capillary electrophoresis and capillary electrochromatography, performed analysis of selected analytes. Concentrations of protons, bradykinin, calcitonin gene-related peptide, substance P, tumor necrosis factor- , interleukin-1 , serotonin, and norepinephrine were found to be significantly higher in the active group than either of the other two groups ( P < 0.01). pH was significantly lower in the active group than the other two groups ( P < 0.03). In conclusion, the described microanalytical technique enables continuous sampling of extremely small quantities of substances directly from soft tissue, with minimal system perturbation and without harmful effects on subjects. The measured levels of analytes can be used to distinguish clinically distinct groups.
myofascial trigger points; musculoskeletal pain; microdialysis; soft tissue pain; pressure pain threshold
Address for reprint requests and other correspondence: J. P. Shah, Rehabilitation Medicine, NIH, Bethesda, MD 20814 (e-mail: jshah{at}mail.cc.nih.gov )</abstract><cop>Bethesda, MD</cop><pub>Am Physiological Soc</pub><pmid>16037403</pmid><doi>10.1152/japplphysiol.00419.2005</doi><tpages>8</tpages></addata></record> |
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| source | MEDLINE; American Physiological Society; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Biochemistry Biological and medical sciences Bradykinin - metabolism Calcitonin Gene-Related Peptide - metabolism Electromyography Fundamental and applied biological sciences. Psychology Human subjects Humans Hydrogen-Ion Concentration Measurement techniques Microdialysis - instrumentation Microdialysis - methods Muscle Contraction - physiology Muscle, Skeletal - metabolism Muscle, Skeletal - physiopathology Muscular system Norepinephrine - metabolism Pain Pain Threshold - physiology Serotonin - metabolism Substance P - metabolism Tumor Necrosis Factor-alpha - metabolism |
| title | An in vivo microanalytical technique for measuring the local biochemical milieu of human skeletal muscle |
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