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"Seeing” Stem Cells Helps to Treat Peripheral Arterial Disease

By MedImaging International staff writers
Posted on 30 Mar 2009
Interventional radiologists are piecing together clues on how to use stem cells to create new or more blood vessels to treat peripheral arterial disease (PAD) in those individuals with extensively narrowed or clogged arteries.

That puzzle may be closer to being solved in light of recent successful techniques that use simple imaging to view and locate transplanted stem cells and to validate that they remain alive in the body once injected, noted the researchers, who presented their findings at the Society of Interventional Radiology's 34th annual scientific meeting, held in San Diego, CA, USA, in March 2009.

PAD is a chronic disease that progressively restricts blood flow causing poor blood circulation (typically in the legs) and if left untreated can lead to serious medical complications, including heart attack, stroke, amputation, and death. Many people can manage the symptoms of PAD and stop its progression through lifestyle changes. If lifestyle changes are not enough, additional medical treatment may be needed, including prescribed medicine to prevent blood clots, lower blood pressure, and cholesterol and control pain.

Interventional radiologists treat severe cases of PAD with minimally invasive treatments, including angioplasty and insertion of stents. "However, some patients have extensive disease--with so many blood vessels affected --that they're difficult to treat," said Frank Wacker, M.D., interventional radiologist at Johns Hopkins School of Medicine (Baltimore, MD, USA). "One day, stem cells may enable the targeted delivery of cellular treatments to PAD patients who may be facing amputation and death. It will be important to deliver the right amount of drug treatment to the right place, thus allowing tailored treatment for individual patients," said Dr. Wacker. "The use of C-arm CT [computed tomography] for image-guided delivery in the angio lab enabled us to precisely target cell delivery in relationship to blood vessels without transferring to a separate CT scanner to obtain the similar information," he added. Stem cell therapy may provide interventional radiologists with a new weapon to fight PAD, a disease that affects 12-20% of individuals in the United States alone age 65 and older.

"To develop new stem cell treatments for PAD, we need suitable noninvasive methods to track the fate of stem cells clearly inside the body," said veterinary radiologist Dara L. Kraitchman, V.M.D., Ph.D., an associate professor at Johns Hopkins School of Medicine. Transplanting stem cells derived from bone marrow (not embryonic stem cells), accompanied by necessary immune-suppressing drugs, has had mixed results. Rejection by the body's immune system is a probably reason for transplant failure. Because X-ray agents are toxic to stem cells, tracking of stem cell therapy cannot be done by directly labeling the stem cells themselves.

Hopkins researchers used a new technique that encloses stem cells in an alginate capsule or "bubble" made from seaweed that contains stem cells to create factors to recruit the building of new vessels along with an X-ray-visible contrast agent. Tested in a rabbit model for the first time, the bubble prevents the body's immune system from reaching and attacking the transplanted cells.

"We needed to figure out how to protect transplanted stem cells that are vulnerable to attack by a recipient's immune system and 'see' the cells to determine if they remained alive or not," said Dr. Kraitchman. "By making sure our protective covering for stem cells stayed intact, we were able to track where we put the stem cells and confirm whether they could survive. These bubbles, which can be transplanted into a leg, can then be placed accurately at blocked blood vessels that need intervention," said Dr. Kraitchman.

However, even when visible with X-ray imaging, researchers could not determine if the stem cells within the bubble remained alive. Researchers then induced the stem cells within the bubble to produce luciferase, a bioluminescence-imaging agent produced by fireflies--to visualize living stem cells. "We could see the bubble via X-ray and tell if the stem cells remained alive as they lit up much like a firefly at night," commented Dr. Kraitchman, who added that all agents used to form the bubble are approved by the U.S. Food and Drug Administration.

The future hope is to utilize adult stem cells extracted from a healthy donor's bone marrow and inject the cells into the patients' legs where circulation problems exist, stimulating the growth of new or more blood vessels in the leg, thereby improving circulation, according to Dr. Wacker. Earlier research in animals and other laboratory tests demonstrate that the injections of stem cells have such an effect and have prompted human trials, she added.

Hopkins researchers took rabbit stem cells--separated from bone marrow in the lab--and injected them into the animal's hindquarter to track them. "Our research could eventually help PAD patients by providing a process for stem cells to thrive in the body and make more blood vessels or new blood vessels," he noted. "Using an animal model, we found that our research opens the door to delivering stems cells exactly where they are needed, allowing them to 'recruit' new blood vessels," added Dr. Wacker.

Bone marrow stem cells, which have the ability to renew themselves, could provide insights into treating PAD with cell-based treatments. Stem cells are master or undifferentiated cells that have the ability to continuously divide and develop into other specialized types of cells. When conditions are just right, stem cells can begin to develop into specialized tissues and organs or turn into more specialized cells that are self-sustaining by replicating through cell division. Once healthy stem cells are harvested such as blood for blood transfusions, they could be injected into a diseased part of the body for growing healthier new blood vessels. Because of their uniqueness, researchers are exploring the use of stem cells for the treatment of life-threatening diseases.

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79 (125.16975402832): SELECT show_live FROM jos_com_show_setting LIMIT 1
80 (!!!!! 1328.9451599121): SELECT show_live FROM jos_com_show_setting LIMIT 1
81 (66.041946411133): SELECT show_live FROM jos_com_show_setting LIMIT 1
82 (47.922134399414): SELECT show_live FROM jos_com_show_setting LIMIT 1
83 (46.968460083008): SELECT show_live FROM jos_com_show_setting LIMIT 1
84 (41.961669921875): SELECT show_live FROM jos_com_show_setting LIMIT 1
85 (50.067901611328): SELECT show_live FROM jos_com_show_setting LIMIT 1
86 (33.855438232422): SELECT show_live FROM jos_com_show_setting LIMIT 1
87 (!!!!! 1351.8333435059): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294722578 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
88 (46.014785766602): SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294722578 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
89 (!!!!! 1224.9946594238): SELECT id,name,title FROM jos_deeppockets WHERE cat=10 AND TYPE='file_folder' AND published=1 AND id != 294743300 AND id != 294743301 AND id != 294743302 AND id != 294743303 AND id != 294743304 AND id != 294743305 AND id != 294743306 AND id != 294743307 AND id != 294743308 AND id != 294743309 AND id != 294743310 AND metakey != 'aacc' ORDER BY `ordering`
90 (!!!!! 7642.9843902588): SELECT show_live FROM jos_com_show_setting LIMIT 1
91 (!!!!! 3911.018371582): SELECT show_live FROM jos_com_show_setting LIMIT 1
92 (!!!!! 4628.1814575195): SELECT show_live FROM jos_com_show_setting LIMIT 1
93 (!!!!! 3362.8940582275): SELECT show_live FROM jos_com_show_setting LIMIT 1
94 (!!!!! 5984.0679168701): SELECT show_live FROM jos_com_show_setting LIMIT 1
95 (!!!!! 2828.83644104): SELECT show_live FROM jos_com_show_setting LIMIT 1
96 (!!!!! 3962.9936218262): SELECT show_live FROM jos_com_show_setting LIMIT 1
97 (426.05400085449): SELECT show_live FROM jos_com_show_setting LIMIT 1
98 (51.021575927734): SELECT show_live FROM jos_com_show_setting LIMIT 1
99 (225.78239440918): SELECT show_live FROM jos_com_show_setting LIMIT 1
100 (!!!!! 2556.0855865479): SELECT show_live FROM jos_com_show_setting LIMIT 1
101 (703.81164550781): SELECT show_live FROM jos_com_show_setting LIMIT 1
102 (617.98095703125): SELECT show_live FROM jos_com_show_setting LIMIT 1
103 (68.902969360352): SELECT show_live FROM jos_com_show_setting LIMIT 1
104 (!!!!! 1900.1960754395): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
105 (114.91775512695): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
106 (78.916549682617): 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=294722578 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
107 (84.877014160156): 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=294722578 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
108 (!!!!! 6089.2105102539): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
109 (!!!!! 1214.0274047852): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
110 (115.87142944336): 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=294722578 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
111 (!!!!! 3965.8546447754): 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=294722578 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
112 (!!!!! 1381.1588287354): 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 (521.18301391602): 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 (430.10711669922): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
115 (79.154968261719): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
116 (767.94624328613): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
117 (62.942504882812): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
118 (68.902969360352): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
119 (681.16188049316): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
120 (93.936920166016): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
121 (142.09747314453): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
122 (386.95335388184): SELECT * FROM trending_articles WHERE `journal_id` = 10 AND `timestamp` <= NOW() + INTERVAL 7 DAY ORDER BY `order`
123 (!!!!! 71514.129638672): 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
124 (866.88995361328): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294722578 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294722578 AND type='deeppockets_item' AND published='1' LIMIT 1
125 (!!!!! 29525.0415802): ( 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 (84.161758422852): ( 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 (563.14468383789): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803337 LIMIT 1
128 (55.074691772461): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803337 LIMIT 1
129 (!!!!! 1256.9427490234): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803276 LIMIT 1
130 (58.174133300781): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803276 LIMIT 1
131 (366.9261932373): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets_archive AS dp WHERE dp.id = 294803276 LIMIT 1
132 (51.021575927734): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets_archive AS dp WHERE dp.id = 294803276 LIMIT 1
133 (301.12266540527): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294802958 LIMIT 1
134 (166.89300537109): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294802958 LIMIT 1
135 (618.93463134766): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
136 (391.96014404297): SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
137 (207.90100097656): SELECT name FROM jos_deeppockets WHERE id=211
138 (51.021575927734): SELECT name FROM jos_deeppockets WHERE id=211
139 (823.02093505859): 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 '((;)|(^))211((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
140 (751.01852416992): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))211((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
141 (!!!!! 4566.9078826904): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
142 (97.990036010742): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
143 (!!!!! 20659.923553467): TRUNCATE TABLE jos_trademed_module
144 (!!!!! 6500.9593963623): 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=294722578 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
145 (828.02772521973): 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=294722578 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
146 (!!!!! 8651.0181427002): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
147 (153.77998352051): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
148 (586.98654174805): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
149 (!!!!! 1125.0972747803): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
150 (!!!!! 1830.1010131836): 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
151 (114.91775512695): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
152 (71.048736572266): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
153 (725.03089904785): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294722578 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294722578 AND type='deeppockets_item' AND published='1' LIMIT 1
154 (65.088272094727): 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=211 or channel_id is null)
155 (43.869018554688): 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=211 or channel_id is null)
156 (46.014785766602): SELECT livesite FROM jos_dp_categories WHERE id=10 AND published='1' LIMIT 1
157 (439.88227844238): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
158 (350.9521484375): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294722578 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294722578 AND published='1' LIMIT 1
159 (499.96376037598): select jos_twitters.link from jos_twitters where cat=10
160 (!!!!! 3496.1700439453): select jos_facebook.link from jos_facebook where cat=10
161 (108.00361633301): select jos_google_plus.link from jos_google_plus where cat=10
162 (44.107437133789): select jos_linkedin.link from jos_linkedin where cat=10