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Matsuyama T, Endo H, Yamamoto H, Takemasa I, Uehara K, Hanai T, Miyata H, Kimura T, Hasegawa H, Kakeji Y, Inomata M, Kitagawa Y, Kinugasa Y. Outcomes of robot-assisted versus conventional laparoscopic low anterior resection in patients with rectal cancer: propensity-matched analysis of the National Clinical Database in Japan. BJS Open 2021; 5:6374226. [PMID: 34553225 PMCID: PMC8458638 DOI: 10.1093/bjsopen/zrab083] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 08/02/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Robot-assisted laparoscopic surgery has several advantages over conventional laparoscopy. However, population-based comparative studies for low anterior resection are limited. This article aimed to compare peri-operative results of robot-assisted low anterior resection (RALAR) and laparoscopy. METHODS This retrospective cohort study used data from patients treated with RALAR or conventional laparoscopic low anterior resection (CLLAR) between October 2018 and December 2019, as recorded in the Japanese National Clinical Database, a data set registering clinical information, perioperative outcomes, and mortality. Of note, the registry does not include information on the tumour location (centimetres from the anal verge) and diverting stoma creation. Perioperative outcomes, including rate of conversion to open surgery, were compared between RALAR and CLLAR groups. Confounding factors were adjusted for using propensity score matching. RESULTS Of 21 415 patients treated during the study interval, 20 220 were reviewed. Two homogeneous groups of 2843 patients were created by propensity score matching. The conversion rate to open surgery was significantly lower in the RALAR group than in the CLLAR group (0.7 versus 2.0 per cent; P < 0.001). The RALAR group had a longer operating time (median: 352 versus 283 min; P < 0.001), less intraoperative blood loss (15 versus 20 ml; P < 0.001), a lower in-hospital mortality rate (0.1 versus 0.5 per cent; P = 0.007), and a shorter postoperative hospital stay (median: 13 versus 14 days; P < 0.001) compared with the CLLAR group. The CLLAR group had a lower rate of readmission within 30 days (2.4 versus 3.3 per cent; P = 0.045). CONCLUSION These data highlight the reduced conversion rate, in-hospital mortality rate, intraoperative blood loss, and length of postoperative hospital stay for rectal cancer surgery in patients treated using robot-assisted laparoscopic surgery compared with laparoscopic low anterior resection.
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Hanai T, Iwami Y, Tomita N, Tsuihiji T. Postnatal cranial ontogeny and growth strategies in the black‐tailed gull
Larus crassirostris
breeding on Kabu Island, Aomori, Japan. J Zool (1987) 2021. [DOI: 10.1111/jzo.12907] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Maebara Y, Tamaoki M, Iguchi Y, Nakahama N, Hanai T, Nishino A, Hayasaka D. Genetic Diversity of Invasive Spartina alterniflora Loisel. (Poaceae) Introduced Unintentionally Into Japan and Its Invasion Pathway. FRONTIERS IN PLANT SCIENCE 2020; 11:556039. [PMID: 33013973 PMCID: PMC7503347 DOI: 10.3389/fpls.2020.556039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 08/18/2020] [Indexed: 05/28/2023]
Abstract
Among invasive species, aquatic plants pose serious threats to local biodiversity and ecosystem functions. Spartina alterniflora Loisel. (Poaceae), native to the eastern United States, was introduced unintentionally into Japan (Aichi and Kumamoto Prefectures) at around 2010. This invasive species could easily and rapidly spread to estuarine areas of Japan via vigorous trade and transport, making the prediction of its future invasion necessary. Here, the distribution and structure of the genetic variation of S. alterniflora in Japan were examined using chloroplast DNA (cpDNA) and microsatellite genotyping analyses for clarifying its invasion route and process. According to the cpDNA analysis, S. alterniflora populations in Japan had a single haplotype (haplotype C4) that is the most dominant genotype around the Florida Peninsula, the region of its origin, and is also widely found in the introduced populations in the East Asia. Microsatellite analysis also showed a loss of genetic diversity in Japanese S. alterniflora populations (allelic richness (A R) = 1.20-1.39) compared with that in its native region (A R = 4.58-4.59), suggesting a founder effect on S. alterniflora that might have occurred after invasion of the species into Japan. The principal coordinate analysis and The STRUCTURE analysis indicated that no gene mixing among Japanese local populations (Aichi, northern and southern Kumamoto) was observed, indicating that Spartina invasion occurred independently into these regions. Among the three regions, trading between the ports of northern Kumamoto and the U.S. was obviously lower than trading with China. We concluded that invasive S. alterniflora might have independently invaded Japan at different times through an East Asia route, particularly via China (i.e., secondary introduction). Therefore, it is important to strengthen the quarantine control on the importation of commodities, especially of transport vehicles at potential donor spots (i.e., border control/border biosecurity system), and to share information networks on invasive species between each region/port for minimizing further risks of biological species such as Spartina.
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Nakata K, Hanai T, Take Y, Osada T, Tsuchiya T, Shima D, Fujimoto Y. Disease-modifying effects of COX-2 selective inhibitors and non-selective NSAIDs in osteoarthritis: a systematic review. Osteoarthritis Cartilage 2018; 26:1263-1273. [PMID: 29890262 DOI: 10.1016/j.joca.2018.05.021] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 05/16/2018] [Accepted: 05/20/2018] [Indexed: 02/02/2023]
Abstract
Osteoarthritis (OA) is a potentially disabling disease whose progression is dependent on several risk factors. OA management usually involves the use of non-steroidal anti-inflammatory drugs (NSAIDs) that are the primary pharmacological treatments of choice. However, NSAIDs have often been associated with unwanted side effects. Cyclooxygenase (COX)-2 specific inhibitors, such as celecoxib, have been successfully used as an alternative in the past for OA treatment and have demonstrated fewer side effects. While abundant data are available for the clinical efficacy of drugs used for OA treatment, little is known about the disease-modifying effects of these agents. A previous review published by Zweers et al. (2010) assessed the available literature between 1990 and 2010 on the disease-modifying effects of celecoxib. In the present review, we aimed to update the existing evidence and identify evolving concepts relating to the disease-modifying effects of not just celecoxib, but also other NSAIDs. We conducted a review of the literature published from 2010 to 2016 dealing with the effects, especially disease-modifying effects, of NSAIDs on cartilage, synovium, and bone in OA patients. Our results show that celecoxib was the most commonly used drug in papers that presented data on disease-modifying effects of NSAIDs. Further, these effects appeared to be mediated through the regulation of prostaglandins, cytokines, and direct changes to tissues. Additional studies should be carried out to assess the disease-modifying properties of NSAIDs in greater detail.
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Maeda K, Koide Y, Hanai T, Sato H, Masumori K, Matsuoka H, Katsuno H. The long-term outcome of transvaginal anterior levatorplasty for intractable rectovaginal fistula. Colorectal Dis 2015; 17:1002-6. [PMID: 25891199 DOI: 10.1111/codi.12977] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 03/16/2015] [Indexed: 02/08/2023]
Abstract
AIM Several procedures have been described for rectovaginal fistula with a wide range of success, but there is little information on the long-term outcome. The aim of the present study was to investigate the long-term outcome after transvaginal anterior levatorplasty (ALP) for intractable rectovaginal fistula. METHOD Data of 16 consecutive patients undergoing transvaginal ALP with fistulectomy and closure of the rectum and vagina between 1998 and 2011 were prospectively recorded and retrospectively investigated to study the long-term outcome. RESULTS Birth injury (n = 7), low anterior resection for rectal cancer (n = 3), pouch surgery for ulcerative colitis (n = 2) and a procedure for prolapse and haemorrhoids (n = 2) were the main causes of the fistula. Nine patients had a covering stoma before surgery. All patients underwent ALP, with a covering stoma in two patients. Infection occurred in one patient and wound rupture after surgery in another patient. These patients underwent reoperation by ALP. All fistulae had healed at a median follow-up of 84 (8-193) months after initial surgery or stoma closure. CONCLUSION Transvaginal ALP is effective for the treatment of mid or low rectovaginal fistula. The results show that a graft is not necessary regardless of whether or not previous surgery has been performed.
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Katayama H, Mizusawa J, Nakamura K, Okajima M, Takemasa I, Kubo Y, Tanaka J, Hanai T, Okuda J, Yatsuoka T, Fukunaga M, Miyajima N, Otsuka K, Akagi Y, Akagi T, Inomata M, Shimada Y, Kitano S. 2003 Institutional heterogeneity of survival and morbidity in laparoscopic surgery for colorectal cancer: From the data of a randomized controlled trial comparing open and laparoscopic surgery (JCOG0404). Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30929-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Shiraki M, Hanai T, Shimizu M. MON-LB006: The Kinetics of Carnitine And Effects on Hepatic Encephalopathy in Cirrhotic Patients. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30770-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hanai T, Shiraki M, Shimizu M. MON-LB008: Sarcopenia Impairs Prognosis of Patients With Liver Cirrhosis. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30772-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Banno H, Hanai T, Asaka T, Kimoto K, Fukuda K. Electron density distribution and disordered crystal structure of 15R-SiAlON, SiAl4O2N4. J SOLID STATE CHEM 2014. [DOI: 10.1016/j.jssc.2013.12.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Maeda K, Maruta M, Hanai T, Sato H, Masumori K, Koide Y, Matsumoto M, Ishihara O. Transvaginal anterior levatorplasty with posterior colporrhaphy for symptomatic rectocele. Tech Coloproctol 2014; 7:181-5. [PMID: 14628163 DOI: 10.1007/s10151-003-0032-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2003] [Accepted: 07/28/2003] [Indexed: 10/26/2022]
Abstract
BACKGROUND We evaluated functional and morphological outcomes of transvaginal anterior levatorplasty with posterior colporrhaphy for symptomatic rectocele. METHODS Ten women (median 68 years) underwent transvaginal anterior levatorplasty with posterior colporrhaphy for symptomatic rectocele. Symptoms and continence were monitored before and after surgery. Manovolumetric study and defecography were performed in 9 of 10 patients before and 3-6 months after surgery. Twenty-one females without anorectal diseases were used as controls in manovolumetric study. The patients were followed up after a median of 89 months (range, 3-103). RESULTS Main symptoms (defecatory disorders in 9 patients, vaginal mass in 6, perineal discomfort in 2) disappeared after surgery. Six patients performed digitation preoperatively and gave up digitation on defecation after surgery. Stool incontinence disappeared in 4 of 5 preoperatively incontinent patients (Cleveland clinic score, 5-12) and continence score improved from 5 to 2 in the remaining patient. Three patients with urinary cough incontinence preoperatively did not experience incontinence after surgery but cough incontinence occurred occasionally in an 81-year-old patient postoperatively. Rectocele demonstrated on defecography disappeared postoperatively in all 9 patients who underwent defecography. High threshold volume and maximum tolerable volume, which were observed preoperatively, decreased to control levels after surgery. CONCLUSION Transvaginal anterior levatorplasty with posterior colporrhaphy might be an option for symptomatic rectocele to improve anorectal and urinary dysfunctions with morphological disorders.
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Nagano J, Hara T, Ideta T, Hanai T, Baba A, Watanabe N, Ohono T, Shimizu M, Tsurumi H, Moriwaki H. The Role of Indoleamine 2,3-Dioxygenase in Hepatocellular Carcinoma. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt460.57] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hanai T. Quantitative in silico Analysis of Organic Modifier Effect on Retention in Reversed-Phase Liquid Chromatography. J Chromatogr Sci 2013; 52:75-80. [DOI: 10.1093/chromsci/bms207] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Masumori K, Maeda K, Hanai T, Sato H, Koide Y, Matsuoka H, Katsuno H, Shiota M. Short-term outcomes of local correction of stoma prolapse with a stapler device. Tech Coloproctol 2013; 17:437-40. [DOI: 10.1007/s10151-012-0959-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Accepted: 11/27/2012] [Indexed: 11/24/2022]
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Takada H, Washino K, Hanai T, Iwata H. Response of parathyroid hormone to exercise and bone mineral density in adolescent female athletes. Environ Health Prev Med 2012; 2:161-6. [PMID: 21432535 DOI: 10.1007/bf02931695] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/1997] [Accepted: 11/04/1997] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND This study investigates 1) the effects of amount of exercise on levels of serum parathyroid hormone (PTH) and calcium, and 2) the relationship between PTH response and bone mineral density in adolescent female athletes. SUBJECTS Twenty-one female athletes on a top-ranked high school basketball team in Japan participated in a one-month intensive basketball program. Subjects were divided into moderate-exercise and strenuous-exercise groups. METHODS The amount of exercise was quantified using estimated metabolic equivalent (METs) and exercise hours. Levels of serum intact-PTH and calcium were examined five times: twice before training to establish a baseline (T(-1) and T(0)), once 3rd week of the training period (T(1), once immediately at the end of the program (T(2)), and again one week later(3)). Bone mineral density of forearm (distal-BMD) was measured one week after the end of the program. PTH levels at T(1), T(2) and(3) were regressed on PTH at baseline (T(0)) for both groups and examined for statistical significance. Multiple regression analyses of the changes of PTH and distal-BMD were conducted. RESULTS 1) Strenuous-exercise subjects showed both increased and decreased PTH levels, while moderate-exercise subjects showed a uniform decrease in PTH throughout the exercise period. 2) Increased PTH was an independent negative predictor of distal-BMD, while high lean body mass, increased serum Ca, and exercise volume were positive predictors. CONCLUSION The amount of exercise affects PTH response: moderate exercise suppresses PTH secretion, while strenuous exercise is apt to induce continuous secretion, which has a negative effect on BMD.
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Gondo K, Hanai T, Takemoto M, Mizuno Y. [Usefulness of the beta 2 microglobulin for the diagnosis of acute encephalopathy]. NO TO HATTATSU = BRAIN AND DEVELOPMENT 2010; 42:233-234. [PMID: 23858586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Matsumoto S, Hanai T, Shimizu N, Sugimoto K, Uemura H. Effect of edaravone on ischemia/reperfusion injury in rat urinary bladder--changes in smooth muscle cell phenotype and contractile function. Aktuelle Urol 2010; 41 Suppl 1:S46-9. [PMID: 20094953 DOI: 10.1055/s-0029-1224656] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Edaravone is a newly developed radical scavenging agent that has been widely used for protection against ischemia/reperfusion (I/R) injury in patients with cerebral infarction. The present study investigated the effects of edaravone on the I/R injury in rat urinary bladder. Adult male rats were divided in the four groups: groups 1-3 received 1 hour of ischemia followed by 1 hour of reperfusion with saline and with edaravone (1 and 3 mg/kg body weight), and group 4 were age-matched control rats. The in vivo ischemia was created by clamping the vesical arteries for 1 hour and reperfusion was accomplished by removing the clips and lasted for 1 hour. Edaravone or saline were administered after reperfusion for 30 min. Following reperfusion, the bladder was excised and separated. Bladder smooth muscle cell (SMC) phenotypic expression was investigated in the electron microscope. The number of contractile and non-contractile bladder SMC phenotype according to the morphological criteria was counted and the ratio of non-contractile to contractile phenotype was calculated. The responses to electrical field stimulation and carbachol were recorded. Edaravone administration resulted in the protection of the morphological changes and contractile responses to both EFS and carbachol that were affected by the agent. Our findings demonstrate that edaravone has a potentially protective effect on I/R-induced damage in the rat bladder.
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Katane M, Hanai T, Furuchi T, Sekine M, Homma H. Hyperactive mutants of mouse D-aspartate oxidase: mutagenesis of the active site residue serine 308. Amino Acids 2008; 35:75-82. [PMID: 18235994 DOI: 10.1007/s00726-007-0627-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2007] [Accepted: 10/25/2007] [Indexed: 10/22/2022]
Abstract
The role of Ser-308 of murine D-aspartate oxidase (mDASPO), particularly its side chain hydroxyl group, was investigated through the use of site-specific mutational analysis of Ser-308. Recombinant mDASPO carrying a substitution of Gly, Ala, or Tyr for Ser-308 was generated, and fused to either His (His-mDASPO), or glutathione S-transferase, His, and S (GHS-mDASPO) at its N-terminus. Wild-type His-mDASPO or GHS-mDASPO or their mutant derivatives were expressed in Escherichia coli and purified by affinity chromatography. All purified recombinant proteins had functional DASPO activity. The Gly-308 and Ala-308 mutants had significantly higher catalytic efficiency towards D-Asp and N-methyl-D-Asp, and a higher affinity for flavin adenine dinucleotide (FAD) compared to the wild-type enzyme. The Tyr-308 mutant had lower catalytic efficiency and binding capacity. These results suggest that the side chain hydroxyl group of a critical residue of mDASPO, Ser-308, down-regulates enzymatic activity, substrate binding, and FAD binding. This study provides information on the active site of DASPO that will considerably enhance our understanding of the biological significance of this enzyme.
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Hanai T, Hubert J. Analysis of Fluorescent Compounds in Urine by Liquid Chromatography. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/01483918408074071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Matsumoto S, Hanai T, Matsuura T, Uemura H, Nishioka T, Akiyama T. Creatol, an oxidative product of creatinine in kidney transplant patients, as a useful determinant of renal function: a preliminary study. Transplant Proc 2006; 38:2009-11. [PMID: 16979981 DOI: 10.1016/j.transproceed.2006.06.104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Creatol (CTL, 5-hydroxycreatinine) is a creatinine (Cr) oxidative metabolite, which was originally isolated from the urine of patients with chronic renal failure, representing a candidate for a uremic toxin. The effectiveness of CTL as an indicator of oxidative stress after kidney transplantation has not been reported. Therefore, we examined the relation between the change in oxidative stress (using CTL) in renal transplant patients and their change in renal function (using Cr). The serum Cr and serum and urine CTL were examined in five renal transplant patients. Serum CTL closely correlated with serum Cr. Serum CTL also correlated with urine CTL, but in some cases there was a time lag. Both the ratio of CTL/(Cr) and serum CTL observed in patient 2 were slow to improve after transplantation. The process through which oxidative stress was reduced was shown by the index of renal damage correlated with kidney function oxidative stress (using serum CTL) after transplantation. Our data suggested that CTL/Cr may be a good indicator of graft prognosis.
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Kinoshita T, Kamitani Y, Yoshida J, Urano T, Nimura N, Hanai T. Ultramicro Analysis of Reducing and Non-Reducing Sugars by Liquid Chromatography. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/01483919108049663] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Shikata N, Maki Y, Noguchi Y, Mori M, Hanai T, Takahashi M, Okamoto M. Multi-layered network structure of amino acid (AA) metabolism characterized by each essential AA-deficient condition. Amino Acids 2006; 33:113-21. [PMID: 17031477 PMCID: PMC7088186 DOI: 10.1007/s00726-006-0412-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2006] [Accepted: 08/28/2006] [Indexed: 11/16/2022]
Abstract
The concentrations of free amino acids in plasma change coordinately and their profiles show distinctive features in various physiological conditions; however, their behavior can not always be explained by the conventional flow-based metabolic pathway network. In this study, we have revealed the interrelatedness of the plasma amino acids and inferred their network structure with threshold-test analysis and multilevel-digraph analysis methods using the plasma samples of rats which are fed diet deficient in single essential amino acid. In the inferred network, we could draw some interesting interrelations between plasma amino acids as follows: 1) Lysine is located at the top control level and has effects on almost all of the other plasma amino acids. 2) Threonine plays a role in a hub in the network, which has direct links to the most number of other amino acids. 3) Threonine and methionine are interrelated to each other and form a loop structure.
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Matsumoto S, Hanai T, Matsuura T, Uemura H, Nishioka T, Akiyama T. Can Monitoring of Serum 8-OHdG Level for 2 Hours After Renal Transplantation Predict Prognosis of the Graft? Transplant Proc 2006; 38:2014-5. [PMID: 16979983 DOI: 10.1016/j.transproceed.2006.06.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
8-Hydroxy-2'-deoxyguanosine (8-OHdG) is an oxidant of deoxyguanosine, a base in the construction of DNA. We examined the extent of DNA damage to the graft through oxidative stress after renal transplantation. Seven renal transplant patients were enrolled in this study. Before reperfusion of the grafts, the level of serum 8-OHdG was measured using enzyme-linked immunosorbent assay. No relationship was found between the level of serum 8-OHdG just before reperfusion and the postoperative course. In all cases, the level of serum 8-OHdG increased after reperfusion and decreased within 2 hours. In six cases, it remained almost the same as the preoperative level. A faster rate of decrease from the first peak of serum 8-OHdG was associated with a lower nadir serum creatinine and reduced occurrence of acute rejection. This study suggested that immediate calming of the oxidative stress following reperfusion may potentially have a positive influence on graft prognosis. In addition, biomarkers of oxidative stress may predict graft prognosis.
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Arora R, Ahmed F, Rustamov I, Babusis D, Hanai T, Arora M. Inertness and Stability of Newly Developed Wide-Pore Bonded Silica Gels. J LIQ CHROMATOGR R T 2006. [DOI: 10.1080/10826079808003441] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hanai T, Miyazaki R, Suzuki J, Kinoshita T. Computational Chemical Analysis of Newly Developed Guanidino-Phase for Quantitative Analysis of Saccharides in Liquid Chromatography. J LIQ CHROMATOGR R T 2006. [DOI: 10.1080/10826079708006570] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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