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UV Light Provides New Histological Diagnostic Tool

By MedImaging International staff writers
Posted on 02 Jan 2018
Image: Breast tissue with a nerve coursing through intact fat cells (Photo courtesy of Richard Levenson / UCD).
Image: Breast tissue with a nerve coursing through intact fat cells (Photo courtesy of Richard Levenson / UCD).
A new study describes how microscopy with ultraviolet surface excitation (MUSE) can deliver non-destructive, slide-free histological images.

Developed at the University of California Davis (UCD; USA), the University of Rochester (NY, USA), and Lawrence Livermore National Laboratory (Livermore, CA, USA), MUSE uses ultraviolet (UV) light at wavelengths at the ~280 nm range to penetrate into tissue samples by just a few microns. Nuclei, cytoplasm, and extracellular components reflect signals from the UV surface excitation that can be detected by conventional color cameras using sub-second exposure times. The process allows for rapid imaging of large areas, as well as immediate interpretation.

The tight UV wavelength range restricts the excitation of conventional fluorescent stains to just the tissue surface, thus providing high-resolution diagnostic histological images resembling those obtained from conventional haematoxylin and eosin staining, as well enhanced morphology and color-contrast information. In addition, the researchers found no significant effects on downstream molecular assays, including fluorescence-in-situ hybridization and RNA sequencing. The study was published on December 4, 2017, in Nature Biomedical Engineering.

“It has become increasingly important to submit relevant portions of often tiny tissue samples for DNA and other molecular functional tests, and sometimes just preparing conventional microscope slices can consume most of or even all of small specimens,” said senior author Professor Richard Levenson, MD, of the department of pathology and laboratory medicine at UCD. “MUSE is important because it quickly provides images from fresh tissue without exhausting the sample.”

“MUSE eliminates any need for conventional tissue processing with formalin fixation, paraffin embedding, or thin-sectioning,” concluded Professor Levenson. “It doesn't require lasers, confocal, multiphoton or optical coherence tomography instrumentation, and the simple technology makes it well suited for deployment wherever biopsies are obtained and evaluated.”

Unlike light of longer wavelength, 280-nm light only penetrates to a depth of 10 microns or less, and thus excites fluorescent signals only from the cut specimen surface. The fluorescence display mode preserves surface shading and depth cues that allow for appreciation of surface profiles, which are important in understanding the three-dimensional (3D) organization of complex specimens. MUSE can thus provide views beyond what can be seen with standard thin-sectioned material, generating results that can resemble those obtainable with scanning electron microscopy (SEM).

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97 (26.941299438477): SELECT show_live FROM jos_com_show_setting LIMIT 1
98 (27.894973754883): SELECT show_live FROM jos_com_show_setting LIMIT 1
99 (26.941299438477): SELECT show_live FROM jos_com_show_setting LIMIT 1
100 (26.941299438477): SELECT show_live FROM jos_com_show_setting LIMIT 1
101 (27.894973754883): SELECT show_live FROM jos_com_show_setting LIMIT 1
102 (26.941299438477): SELECT show_live FROM jos_com_show_setting LIMIT 1
103 (27.894973754883): SELECT show_live FROM jos_com_show_setting LIMIT 1
104 (63.896179199219): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
105 (50.067901611328): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
106 (67.949295043945): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294772023 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
107 (49.829483032227): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294772023 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
108 (73.909759521484): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
109 (43.153762817383): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
110 (67.949295043945): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.id=294772023 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
111 (473.0224609375): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.id=294772023 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
112 (509.02366638184): SELECT dp.name, dp.id, dp2.name as channel, ex.name as author_name, ex.specialization, ex.images FROM jos_deeppockets as dp LEFT JOIN jos_experts as ex ON ex.id = dp.author LEFT JOIN jos_deeppockets as dp2 ON dp2.id = dp.fid WHERE dp.author != 0 AND dp.cat = 10 AND dp.published = 1 AND ( (dp.fid = 294743300) OR (dp.fid = 294743301) OR (dp.fid = 294743302) OR (dp.fid = 294743303) OR (dp.fid = 294743304) OR (dp.fid = 294743305) OR (dp.fid = 294743306) OR (dp.fid = 294743307) OR (dp.fid = 294743308) OR (dp.fid = 294743309) OR (dp.fid = 294743310) ) ORDER BY RAND() LIMIT 1
113 (308.99047851562): SELECT dp.name, dp.id, dp2.name as channel, ex.name as author_name, ex.specialization, ex.images FROM jos_deeppockets as dp LEFT JOIN jos_experts as ex ON ex.id = dp.author LEFT JOIN jos_deeppockets as dp2 ON dp2.id = dp.fid WHERE dp.author != 0 AND dp.cat = 10 AND dp.published = 1 AND ( (dp.fid = 294743300) OR (dp.fid = 294743301) OR (dp.fid = 294743302) OR (dp.fid = 294743303) OR (dp.fid = 294743304) OR (dp.fid = 294743305) OR (dp.fid = 294743306) OR (dp.fid = 294743307) OR (dp.fid = 294743308) OR (dp.fid = 294743309) OR (dp.fid = 294743310) ) ORDER BY RAND() LIMIT 1
114 (72.956085205078): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
115 (45.061111450195): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
116 (83.92333984375): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
117 (40.054321289062): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
118 (90.837478637695): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
119 (38.14697265625): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
120 (246.04797363281): SELECT * FROM trending_articles WHERE `journal_id` = 10 AND `timestamp` <= NOW() + INTERVAL 7 DAY ORDER BY `order`
121 (!!!!! 17076.015472412): SELECT * FROM jos_deeppockets WHERE jos_deeppockets.cat = 10 AND jos_deeppockets.type = 'deeppockets_item' AND jos_deeppockets.published = 1 AND jos_deeppockets.created + INTERVAL 14 DAY >= NOW() ORDER BY jos_deeppockets.hits DESC LIMIT 7
122 (93.936920166016): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
123 (43.869018554688): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
124 (442.9817199707): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294772023 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294772023 AND type='deeppockets_item' AND published='1' LIMIT 1
125 (!!!!! 596427.91748047): ( SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.video != '' AND dp.video_source != '' AND dp.cat = 10 AND dp.published = 1 AND dp.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) UNION ( SELECT dpa.id, dpa.name, dpa.title, dpa.video, dpa.video_source, dpa.created FROM jos_deeppockets_archive AS dpa WHERE dpa.video != '' AND dpa.video_source != '' AND dpa.cat = 10 AND dpa.published = 1 AND dpa.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) ORDER BY created DESC LIMIT 3
126 (123.02398681641): ( SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.video != '' AND dp.video_source != '' AND dp.cat = 10 AND dp.published = 1 AND dp.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) UNION ( SELECT dpa.id, dpa.name, dpa.title, dpa.video, dpa.video_source, dpa.created FROM jos_deeppockets_archive AS dpa WHERE dpa.video != '' AND dpa.video_source != '' AND dpa.cat = 10 AND dpa.published = 1 AND dpa.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) ORDER BY created DESC LIMIT 3
127 (528.09715270996): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800513 LIMIT 1
128 (82.015991210938): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800513 LIMIT 1
129 (354.05158996582): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800359 LIMIT 1
130 (67.949295043945): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800359 LIMIT 1
131 (258.20732116699): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800361 LIMIT 1
132 (58.174133300781): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800361 LIMIT 1
133 (625.8487701416): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
134 (532.15026855469): SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
135 (336.88545227051): SELECT name FROM jos_deeppockets WHERE id=215
136 (47.922134399414): SELECT name FROM jos_deeppockets WHERE id=215
137 (649.92904663086): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))215((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
138 (!!!!! 3270.149230957): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))215((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
139 (134.94491577148): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
140 (76.055526733398): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
141 (!!!!! 10411.977767944): TRUNCATE TABLE jos_trademed_module
142 (138.99803161621): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294772023 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
143 (86.069107055664): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294772023 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
144 (591.03965759277): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
145 (88.930130004883): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
146 (98.943710327148): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
147 (66.995620727539): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
148 (!!!!! 1586.9140625): SELECT jos_item.* FROM jos_item INNER JOIN jos_number ON jos_item.numberID=jos_number.id WHERE 1=1 AND (jos_item.imgMini<>'') AND jos_item.type='L' AND jos_item.numberID= ( SELECT jos_number.id FROM jos_number WHERE jos_number.journalID IN (10) and jos_number.id in (select distinct jos_number.id from jos_number join jos_item on jos_item.numberid=jos_number.id where jos_item.type='P') ORDER BY (CONVERT(SUBSTRING(issue,1,2),SIGNED) + (CONVERT(SUBSTRING(issue,3,2),SIGNED)*100)) DESC LIMIT 0,1 ) ORDER BY RAND() DESC LIMIT 6
149 (100.85105895996): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
150 (68.902969360352): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
151 (72.002410888672): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294772023 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294772023 AND type='deeppockets_item' AND published='1' LIMIT 1
152 (56.028366088867): select distinct links.* from jos_textlinks links join jos_textlinks_placement placement on links.id=placement.link_id where journal_id=(10) and (channel_id=215 or channel_id is null)
153 (46.968460083008): select distinct links.* from jos_textlinks links join jos_textlinks_placement placement on links.id=placement.link_id where journal_id=(10) and (channel_id=215 or channel_id is null)
154 (58.174133300781): SELECT livesite FROM jos_dp_categories WHERE id=10 AND published='1' LIMIT 1
155 (95.129013061523): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
156 (65.088272094727): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294772023 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294772023 AND published='1' LIMIT 1
157 (136.13700866699): select jos_twitters.link from jos_twitters where cat=10
158 (36.954879760742): select jos_facebook.link from jos_facebook where cat=10
159 (35.04753112793): select jos_google_plus.link from jos_google_plus where cat=10
160 (33.855438232422): select jos_linkedin.link from jos_linkedin where cat=10
161 (340.93856811523): update jos_bannersmanager_banner set impmade=impmade+1 where id in(14615,14202,14203)
162 (!!!!! 6412.0292663574): insert into jos_banners_delta values (14615,'2025-06-20 14:27:38','216.73.216.120','view'),(14202,'2025-06-20 14:27:38','216.73.216.120','view'),(14203,'2025-06-20 14:27:38','216.73.216.120','view')