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Kakinuma K, Kakinuma T. Significance of oxidative stress and antioxidant capacity tests as biomarkers of premature ovarian insufficiency: A case control study. World J Clin Cases 2024; 12:479-487. [PMID: 38322464 PMCID: PMC10841946 DOI: 10.12998/wjcc.v12.i3.479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/27/2023] [Accepted: 01/02/2024] [Indexed: 01/18/2024] Open
Abstract
BACKGROUND Premature ovarian insufficiency (POI) is a condition that causes secondary amenorrhea owing to ovarian hypofunction at an early stage. Early follicular depletion results in intractable infertility, thereby considerably reducing the quality of life of females. Given the continuum in weakened ovarian function, progressing from incipient ovarian failure (IOF) to transitional ovarian failure and further to POI, it is necessary to develop biomarkers for predicting POI. The oxidative stress states in IOF and POI were comprehensively evaluated via oxidative stress [diacron-reactive oxygen metabolites (d-ROMs)] test and antioxidant capacity [biological antioxidant potential (BAP)]. AIM To explore the possibilities of oxidative stress and antioxidant capacity as biomarkers for the early detection of POI. METHODS Females presenting with secondary amenorrhea over 4 mo and a follicle stimulating hormone level of > 40 mIU/mL were categorized into the POI group. Females presenting with a normal menstrual cycle and a follicle stimulating hormone level of > 10.2 mIU/mL were categorized into the IOF group. Healthy females without ovarian hypofunction were categorized into the control group. Among females aged < 40 years who visited our hospital from January 2021 to June 2022, we recruited 11 patients into both POI and IOF groups. For the potential antioxidant capacity, the relative oxidative stress index (BAP/d-ROMs × 100) was calculated, and the oxidative stress defense system was comprehensively evaluated. RESULTS d-ROMs were significantly higher in the POI and IOF groups than in the control group, (478.2 ± 58.7 U.CARR, 434.5 ± 60.6 U.CARR, and 341.1 ± 35.1 U.CARR, respectively) (U.CARR is equivalent to 0.08 mg/dL of hydrogen peroxide). However, no significant difference was found between the POI and IOF groups. Regarding BAP, no significant difference was found between the control, IOF, and POI groups (2078.5 ± 157.4 μmol/L, 2116.2 ± 240.2 μmol/L, and 2029.0 ± 186.4 μmol/L, respectively). The oxidative stress index was significantly higher in the POI and IOF groups than in the control group (23.7 ± 3.3, 20.7 ± 3.6, and 16.5 ± 2.1, respectively). However, no significant difference was found between the POI and IOF groups. CONCLUSION High levels of oxidative stress suggest that evaluating the oxidative stress state may be a useful indicator for the early detection of POI.
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Affiliation(s)
- Kaoru Kakinuma
- Department of Obstetrics and Gynecology, International University of Health and Welfare Hospital, Tochigi 329-2763, Japan
- Graduate School of Medicine, International University of Health and Welfare, Tokyo 107-8402, Japan
| | - Toshiyuki Kakinuma
- Department of Obstetrics and Gynecology, International University of Health and Welfare Hospital, Tochigi 329-2763, Japan
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Kakinuma K, Kakinuma T. Analysis of oxidative stress and antioxidative potential in premature ovarian insufficiency. World J Clin Cases 2023; 11:2684-2693. [PMID: 37214574 PMCID: PMC10198121 DOI: 10.12998/wjcc.v11.i12.2684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/20/2023] [Accepted: 03/23/2023] [Indexed: 04/25/2023] Open
Abstract
BACKGROUND Premature ovarian insufficiency (POI) is characterized by an early decline in ovarian function, inducing secondary amenorrhea. While the cause of POI has not yet been identified, the function of mitochondria in the ovaries and the cytotoxicity associated with reactive oxygen species (ROS) have been implicated in follicle pool depletion and a decline in follicle quality. Recently developed tests have enabled easy measurement of diacron-reactive oxygen metabolites (d-ROMs) and biological antioxidant potential (BAP). The combination of these two tests is used to comprehensively assess oxidative stress in the blood.
AIM To comprehensively assess the oxidative stress of d-ROMs and BAP in POI.
METHODS Participants were classified into two groups: A POI group of 11 women aged < 40 years examined between January 2021 and June 2022 with a history of secondary amenorrhea for at least 4 mo in our hospital and an FSH value of ≥ 40 mIU/mL; and a control group of healthy women of the same age with normal ovarian function in our hospital. Plasma d-ROMs and BAP were measured in both these groups underwent. Differences between groups were assessed using the t-test.
RESULTS The mean age and mean body mass index (BMI) were 35.8 ± 3.0 years and 20.1 ± 1.9 kg/m2 in the control group and 35.8 ± 2.7 years and 19.4 ± 2.5 kg/m2 in the POI group, respectively. The mean gravidity and parity in control and POI groups were 0.6 ± 0.7 and 0.4 ± 0.5 and 0.6 ± 0.9 and 0.3 ± 0.5, respectively. The two groups did not differ significantly in terms of mean age, BMI, gravidity, or parity. The d-ROMs level was significantly higher in the POI group than in the control group (478.2 ± 58.7 vs 341.1 ± 35.1 U.CARR; P < 0.001); however, the BAP level did not significantly differ between the two groups (2078.5 ± 157.4 vs 2029.0 ± 186.4 μmol/L). The oxidase stress index (d-ROMs/BAP × 100) was significantly higher in the POI group than in the control group (23.7 ± 3.3 vs 16.5 ± 2.1; P < 0.001).
CONCLUSION Oxidative stress was significantly greater in the POI group than in the control group, suggesting oxidative stress as a factor that can serve as a POI biomarker.
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Affiliation(s)
- Kaoru Kakinuma
- Department of Obstetrics and Gynecology, International Health and Welfare Hospital, Nasushiobara 327-2763, Japan
| | - Toshiyuki Kakinuma
- Department of Obstetrics and Gynecology, International Health and Welfare Hospital, Nasushiobara 327-2763, Japan
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Xue C, Yang B, Xu J, Mao Z. Golden mean of serum uric acid level on the risk of kidney function decline. Clin Exp Nephrol 2023; 27:493-494. [PMID: 36947304 DOI: 10.1007/s10157-023-02335-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 02/26/2023] [Indexed: 03/23/2023]
Affiliation(s)
- Cheng Xue
- Department of Nephrology, Kidney Institute of CPLA, Shanghai Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Bo Yang
- Division of Nephrology & Endocrinology, Naval Medical Center of PLA, Shanghai, China
| | - Jing Xu
- Department of Nephrology, Kidney Institute of CPLA, Shanghai Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Zhiguo Mao
- Department of Nephrology, Kidney Institute of CPLA, Shanghai Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.
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Izumino H, Tajima G, Tasaki O, Inokuma T, Hatachi G, Takagi K, Miyazaki T, Matsumoto K, Tsuchiya T, Sato S, Nagayasu T. Balance of the prooxidant and antioxidant system is associated with mortality in critically ill patients. J Clin Biochem Nutr 2023; 72:157-164. [PMID: 36936878 PMCID: PMC10017322 DOI: 10.3164/jcbn.22-79] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 11/06/2022] [Indexed: 01/28/2023] Open
Abstract
It is well known that oxidative stress causes certain diseases and organ damage. However, roles of oxidative stress in the acute phase of critical patients remain to be elucidated. This study aimed to investigate the balance of oxidative and antioxidative system and to clarify the association between oxidative stress and mortality in critically ill patients. This cohort study enrolled 247 patients transported to our emergency department by ambulance. Blood was drawn on hospital arrival, and serum derivatives of reactive oxidant metabolites (dROMs, oxidative index) and biological antioxidant potential (BAP, antioxidative index) were measured. Modified ratio (MR) is also calculated as BAP/dROMs/7.51. There were 197 survivors and 50 non-survivors. In the non-survivors, dROMs were significantly lower (274 vs 311, p<0.01), BAP was significantly higher (2,853 vs 2,138, p<0.01), and MR was significantly higher (1.51 vs 0.92, p<0.01) compared to those in the survivors. The AUC of MR was similar to that for the APACHE II score. Contrary to our expectations, higher BAP and lower dROMs were observed on admission in non-survivors. This may suggest that the antioxidative system is more dominant in the acute phase of severe insults and that the balance toward a higher antioxidative system is associated with mortality.
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Affiliation(s)
- Hiroo Izumino
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
- Acute and Critical Care Center, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan
| | - Goro Tajima
- Acute and Critical Care Center, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan
- Department of Emergency Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
- To whom correspondence should be addressed. E-mail:
| | - Osamu Tasaki
- Acute and Critical Care Center, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan
- Department of Emergency Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Takamitsu Inokuma
- Acute and Critical Care Center, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan
| | - Go Hatachi
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Katsunori Takagi
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Takuro Miyazaki
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Keitaro Matsumoto
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Tomoshi Tsuchiya
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
| | - Shuntaro Sato
- Clinical Research Center, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan
| | - Takeshi Nagayasu
- Department of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan
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Lower range of serum uric acid level increases risk of rapid decline of kidney function in young and middle-aged adults: the Yuport Medical Checkup Center Study. Clin Exp Nephrol 2023; 27:435-444. [PMID: 36773175 PMCID: PMC10104940 DOI: 10.1007/s10157-023-02318-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 01/10/2023] [Indexed: 02/12/2023]
Abstract
BACKGROUND The effect of low serum uric acid (sUA) levels on kidney function is unclear. This study aimed to clarify the relationship between low sUA levels and the rapid decline in kidney function. METHODS We examined the relationship between sUA levels and kidney function decline in health check-up examinees. A total of 10,547 participants were enrolled using data from the Yuport Medical Checkup Center Study between 1998 and 2002 for baseline and data from 2002 to 2006 as the follow-up period in Japan. According to sUA level (mg/dL), we classified the participants into the following six groups: (1) 2.0-2.9 (n = 247), (2) 3.0-3.9 (n = 1457), (3) 4.0-4.9 (n = 2883), (4) 5.0-5.9 (n = 2899), (5) 6.0-6.9 (n = 2010), and (6) 7.0-7.9 (n = 1,051). The relationship between sUA level and rapid decline in estimated glomerular filtration rate (ΔeGFR ≥ 3 mL/min/1.73 m2/year) was examined using a logistic regression model. RESULTS During study period (5.4 ± 1.6 years), the incidence of rapid eGFR decline for the respective sUA groups (2.0-2.9, 3.0-3.9, 4.0-4.9, 5.0-5.9, 6.0-6.9, 7.0-7.9) were as follows: 4.5%, 4.0%, 2.4%, 3.3%, 3.1%, 3.4%. The crude and adjusted odds ratios (OR) for rapid eGFR decline were significantly higher in the 2.0-2.9 (OR:1.93 and 1.86) and 3.0-3.9 (OR:1.72 and 1.73) groups than in the 4.0-4.9 groups (reference). Stratified analysis of age differences revealed that the detrimental effect of low sUA was not evident in older adults (age ≥ 65 years). CONCLUSION A lower normal sUA level is related to an increased risk for a rapid decline in kidney function.
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Miyamoto D, Sato N, Nagata K, Sakai Y, Sugihara H, Ohashi Y, Stiburkova B, Sebesta I, Ichida K, Okamoto K. Analysis of Purine Metabolism to Elucidate the Pathogenesis of Acute Kidney Injury in Renal Hypouricemia. Biomedicines 2022; 10:biomedicines10071584. [PMID: 35884889 PMCID: PMC9312704 DOI: 10.3390/biomedicines10071584] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 12/02/2022] Open
Abstract
Renal hypouricemia is a disease caused by the dysfunction of renal urate transporters. This disease is known to cause exercise-induced acute kidney injury, but its mechanism has not yet been established. To analyze the mechanism by which hypouricemia causes renal failure, we conducted a semi-ischemic forearm exercise stress test to mimic exercise conditions in five healthy subjects, six patients with renal hypouricemia, and one patient with xanthinuria and analyzed the changes in purine metabolites. The results showed that the subjects with renal hypouricemia had significantly lower blood hypoxanthine levels and increased urinary hypoxanthine excretion after exercise than healthy subjects. Oxidative stress markers did not differ between healthy subjects and hypouricemic subjects before and after exercise, and no effect of uric acid as a radical scavenger was observed. As hypoxanthine is a precursor for adenosine triphosphate (ATP) production via the salvage pathway, loss of hypoxanthine after exercise in patients with renal hypouricemia may cause ATP loss in the renal tubules and consequent tissue damage.
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Affiliation(s)
- Daisuke Miyamoto
- Department of Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo 113-8603, Japan; (D.M.); (Y.S.)
| | - Nana Sato
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan; (N.S.); (K.N.)
| | - Koji Nagata
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan; (N.S.); (K.N.)
| | - Yukinao Sakai
- Department of Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo 113-8603, Japan; (D.M.); (Y.S.)
| | - Hitoshi Sugihara
- Department of Endocrinology, Diabetes, and Metabolism, Graduate School of Medicine, Nippon Medical School, Tokyo 113-8603, Japan;
| | - Yuki Ohashi
- Department of Pathophysiology, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan; (Y.O.); (K.I.)
| | - Blanka Stiburkova
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital, 11000 Prague, Czech Republic;
| | - Ivan Sebesta
- Institute of Rheumatology, Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital, 11000 Prague, Czech Republic;
| | - Kimiyoshi Ichida
- Department of Pathophysiology, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan; (Y.O.); (K.I.)
- Division of Kidney and Hypertension, Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Ken Okamoto
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan; (N.S.); (K.N.)
- Correspondence: ; Tel.: +81-3-5841-5035
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Kawamura A, Hashimoto S, Suzuki M, Ueno H, Sugita M. Oligomerized polyphenols in lychee fruit extract supplements may improve high-intensity exercise performance in male athletes: a pilot study. Phys Act Nutr 2021; 25:8-15. [PMID: 34727683 PMCID: PMC8580582 DOI: 10.20463/pan.2021.0015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 09/06/2021] [Indexed: 11/25/2022] Open
Abstract
[Purpose] Excessive reactive oxygen species (ROS) induced by prolonged high-intensity exercise can cause structural and functional damage. Antioxidant polyphenol supplementation, which reduces ROS levels, may improve high-intensity exercise performance. We evaluated the effect of lychee fruit extract, which contains high levels of low-molecular-weight oligomerized polyphenols, on high-intensity exercise performance. [Methods] Ten male athletes were included in an open-label trial that consisted of control and intervention phases, with a 7-day washout period between phases. The participants were administered oligomerized lychee fruit extract for seven days, whereas no intervention was given in the control phase. High-intensity intermittent exercise and the Wingate test were performed. The power output, blood lactate levels, reactive oxygen metabolite levels, biological antioxidant potential, heart rate, and rate of perceived exertion were measured. [Results] The average power output was significantly higher in the intervention phase than in the control phase (P < 0.01), while the change in blood lactate levels was significantly lower in the intervention phase than in the control phase (P < 0.05). The average heart rate was significantly higher in the intervention phase than in the control phase (P < 0.05), without changing the rate of perceived exertion. Although there was no difference in reactive oxygen metabolite levels between the phase, the change in biological antioxidant potential was larger in the intervention phase than in the control phase (P = 0.06). The Wingate test showed no significant differences between the phase. [Conclusion] Short-term loading with oligomerized lychee fruit extract may increase performance during high-intensity intermittent exercise by improving metabolism.
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Affiliation(s)
- Aki Kawamura
- Sports Science Research Promotion Centre, Nippon Sport Science University, Tokyo, Japan
| | - Shun Hashimoto
- Sports Science Research Promotion Centre, Nippon Sport Science University, Tokyo, Japan
| | - Miho Suzuki
- Faculty of Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Hiromasa Ueno
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Masaaki Sugita
- Faculty of Sport Science, Nippon Sport Science University, Tokyo, Japan
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Boia S, Boariu M, Baderca F, Rusu D, Muntean D, Horhat F, Boia ER, Borza C, Anghel A, Stratul ŞI. Clinical, microbiological and oxidative stress evaluation of periodontitis patients treated with two regimens of systemic antibiotics, adjunctive to non-surgical therapy: A placebo-controlled randomized clinical trial. Exp Ther Med 2019; 18:5001-5015. [PMID: 31819766 PMCID: PMC6895779 DOI: 10.3892/etm.2019.7856] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 07/25/2019] [Indexed: 12/21/2022] Open
Abstract
Aim of research was to evaluate and compare the clinical and microbiological effects of two different regimens of amoxicillin (AMX) and metronidazole (MTZ) combined with non-surgical periodontal therapy in patients with chronic periodontitis (CP), and identify antibiotic-resistant bacteria and changes in oxidative stress (OS). Forty-six patients with generalized CP were randomly assigned to group A [scaling and root planing within 24 h (SRP) + placebo for 7 days), group B [SRP + AMX + MTZ, both 500 mg three times daily (TID), 3 days), and group C [SRP + AMX + MTZ, both 500 mg TID, 7 days). Periodontal pocket depth (PPD-primary outcome), clinical attachment level (CAL), full-mouth bleeding scores (FMBS), plaque scores (FMPS), blood and subgingival plaque were assessed at baseline and after three months. OS was evaluated via derivatives of reactive oxygen metabolites (d-ROMs) and assessments of biological antioxidant potential (BAP). Bacterial profiling was performed by PCR. Antibiotic resistance was evaluated in cultures. PPD, CAL, number of sites with PPD ≥6 mm, their PPD, CAL and FMBS decreased (P<0.05) in all groups, as well as FMPS in groups A and B, and d-ROMs in group C. There were significant differences among groups regarding decreases in the frequency of detection for Aa and Tf. For Aa, there were differences between groups A and C (P=0.048) and between groups B and C (P=0.048), but not between groups A and B; whereas for Tf, groups A and B were different from group C (P<0.001), but not from each other (P=0.920). No resistance to AMX was identified prior to treatment; two strains were resistant after treatment. Before treatment, 13 strains were resistant to MTZ, and 2 were resistant after. One strain in the same patient was sensitive prior to treatment, and later became resistant to both antibiotics. SRP with a 7-day course of antibiotic therapy was more effective for improving clinical parameters, in decrease of detection of several periopathogens, and in improvement of OS when compared to a 3-day regimen. Resistance was found in fewer strains after treatment than before.
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Affiliation(s)
- Simina Boia
- Department of Periodontology, Faculty of Dental Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara, Romania
| | - Marius Boariu
- Department of Endodontics, Faculty of Dental Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara, Romania
| | - Flavia Baderca
- Department of Histology, Faculty of Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara, Romania
| | - Darian Rusu
- Department of Periodontology, Faculty of Dental Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara, Romania
| | - Delia Muntean
- Department of Microbiology, Faculty of Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara, Romania
| | - Florin Horhat
- Department of Microbiology, Faculty of Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara, Romania
| | - Eugen-Radu Boia
- Department of ENT, Faculty of Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara, Romania
| | - Claudia Borza
- Department of Pathophysiology, Faculty of Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara, Romania
| | - Andrei Anghel
- Department of Biochemistry, Faculty of Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara, Romania
| | - Ştefan-Ioan Stratul
- Department of Periodontology, Faculty of Dental Medicine, 'Victor Babeş' University of Medicine and Pharmacy, 300041 Timişoara, Romania
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9
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Nagaoka Y, Tanaka Y, Yoshimoto H, Suzuki R, Ryu K, Ueda M, Akiyama M, Nagai M, Miyaoka Y, Kanda E, Iwai S, Nagaoka M, Kanno Y. The effect of small dose of topiroxostat on serum uric acid in patients receiving hemodialysis. Hemodial Int 2017; 22:388-393. [DOI: 10.1111/hdi.12620] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/09/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Yume Nagaoka
- Department of Nephrology; Tokyo Medical University; Tokyo Japan
- Nagaoka Hospital; Kaminoyama Japan
| | | | | | - Rie Suzuki
- Department of Nephrology; Tokyo Medical University; Tokyo Japan
- Shinjuku Ishikawa Clinic; Tokyo Japan
- Department of Nephrology; Tokyo Yamate Medical Center; Tokyo Japan
| | - Kakei Ryu
- Department of Healthcare and Regulatory Sciences; Showa University School of Pharmacy; Tokyo Japan
| | - Mio Ueda
- Shinjuku Ishikawa Clinic; Tokyo Japan
| | - Minako Akiyama
- Department of Nephrology; Tokyo Yamate Medical Center; Tokyo Japan
| | - Miho Nagai
- Department of Nephrology; Tokyo Medical University; Tokyo Japan
| | | | - Eiichiro Kanda
- Department of Nephrology; Tokyo Kyosai Hospital; Tokyo Japan
| | - Shinnichi Iwai
- Department of Healthcare and Regulatory Sciences; Showa University School of Pharmacy; Tokyo Japan
| | | | - Yoshihiko Kanno
- Department of Nephrology; Tokyo Medical University; Tokyo Japan
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10
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D'Arena G, Vitale C, Perbellini O, Coscia M, La Rocca F, Ruggieri V, Visco C, Di Minno NMD, Innocenti I, Pizza V, Deaglio S, Di Minno G, Giudice A, Calapai G, Musto P, Laurenti L, Iorio EL. Prognostic relevance of oxidative stress measurement in chronic lymphocytic leukaemia. Eur J Haematol 2017. [PMID: 28646624 DOI: 10.1111/ejh.12918] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To evaluate the prognostic significance of oxidative stress (OS) and antioxidant defence status measurement in patients with chronic lymphocytic leukaemia (CLL). METHODS d-ROMs test and BAP test were evaluated at diagnosis of 165 patients with CLL and correlated with clinical-biological features and prognosis. RESULTS An increased oxidative damage (d-ROMs test) and a reduced antioxidant potential (BAP test) were found in CLL patients than normal controls (P<.0001). CLL patients with higher d-ROMs values had higher number of circulating white blood cells and lymphocytes, and higher values of β2 -microglobulin. Higher d-ROMs values were found in female (P=.0003), in patients with unmutated IgVH (P=.04), unfavourable cytogenetics (P=.002) and more advanced clinical stage (P=.002). Higher BAP test values were found in patients expressing CD49d (P=.01) and with more advanced clinical stage (P=.004). At a median follow-up of 48 months, CLL patients with d-ROMs ≥418 CARR U were found to have a shorter time to first treatment (TFT) (P=.0002), and a reduced survival (P=.006) than others. CLL patients with BAP test values ≥2155 μmol/L had a shorter TFT (P=.008) and a shorter survival (P=.003). CONCLUSIONS OS can affect CLL patients by concomitantly increasing reactive oxygen metabolites production and decreasing antioxidant defences.
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Affiliation(s)
- Giovanni D'Arena
- Hematology and Stem Cell Transplantation Unit, IRCCS Centro di Riferimento Oncologico della Basilicata, Rionero in Vulture, Italy
| | - Candida Vitale
- Division of Hematology, AOU Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy.,Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | | | - Marta Coscia
- Division of Hematology, AOU Città della Salute e della Scienza di Torino, University of Torino, Torino, Italy.,Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy
| | - Francesco La Rocca
- Laboratory of Pre-Clinical and Translational Research, IRCCS Centro di Riferimento Oncologico della Basilicata, Rionero in Vulture, Italy
| | - Vitalba Ruggieri
- Laboratory of Pre-Clinical and Translational Research, IRCCS Centro di Riferimento Oncologico della Basilicata, Rionero in Vulture, Italy
| | - Carlo Visco
- Hematology Unit, "S. Bortolo" Hospital, Vicenza, Italy
| | - Nicola Matteo Dario Di Minno
- Department of Clinical Medicine and Surgery, Regional Reference Centre for Coagulation Disorders, "Federico II" University, Napoli, Italy
| | - Idanna Innocenti
- Hematology Department, Catholic University of "Sacred Hearth", Roma, Italy
| | - Vincenzo Pizza
- Neurophisiopathology Unit, "S. Luca" Hospital, Vallo della Lucania, Italy
| | - Silvia Deaglio
- Department of Medical Sciences, University of Torino, Torino, Italy
| | - Giovanni Di Minno
- Department of Clinical Medicine and Surgery, Regional Reference Centre for Coagulation Disorders, "Federico II" University, Napoli, Italy
| | - Aldo Giudice
- Epidemiology Unit, Istituto Nazionale dei Tumori, "Fondazione G. Pascale", IRCCS, Napoli, Italy
| | - Gioacchino Calapai
- Department of Biomedical and Dental Sciences and Morphological and Functional Sciences, University of Messina, Messina, Italy
| | - Pellegrino Musto
- Scientific Direction, IRCCS Centro di Riferimento Oncologico della Basilicata, Rionero in Vulture, Italy
| | - Luca Laurenti
- Hematology Department, Catholic University of "Sacred Hearth", Roma, Italy
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11
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Perez JD, Sakata MM, Colucci JA, Spinelli GA, Felipe CR, Carvalho VM, Cardozo KHM, Medina-Pestana JO, Tedesco-Silva H, Schor N, Casarini DE. Plasma proteomics for the assessment of acute renal transplant rejection. Life Sci 2016; 158:111-20. [PMID: 27393492 DOI: 10.1016/j.lfs.2016.06.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/08/2016] [Accepted: 06/28/2016] [Indexed: 12/13/2022]
Abstract
UNLABELLED Renal transplant is the best treatment for patients with chronical kidney disease however acute graft rejection is the major impediment to success in renal transplantation leading to loss of the organ the first year after transplantation. The aim of this study was to identify plasma proteins that may be early biomarkers of acute rejection of renal allograft, developing a diagnostic model that avoids the loss of the transplanted organ. Shotgun proteomics (LC-MS/MS) method was used to analyze a set of thirty-one plasma samples, including 06 from patients with acute graft rejection after transplantation (rejection group/Rej-group) and twenty-five from renal transplant patients with stable renal graft function (control group/Ct-group). As results nineteen proteins were upregulated in the rejection group compared to the control group, and two proteins were downregulated; and three were present exclusively in the rejection group. After analysis, we selected four proteins that were related to the acute phase response and that were strongly associated with each other: they are alpha-1 antitrypsin (A1AT), alpha-2 antiplasmin (A2AP), serum amyloid A (SAA) and apolipoprotein CIII (APOC3). We think that simultaneous monitoring of SAA and APOC3 can provide insights into a broad profile of signaling proteins and is highly valuable for the early detection of a possible acute renal graft rejection. STATEMENT OF SIGNIFICANCE OF THE STUDY In this study we did plasma shotgun patients with and without acute rejection of renal allograft. In a clinical setting an acute rejection is typically suspected upon an increase in plasma creatinine and renal biopsy. But these methods are late and unspecific; sometimes the rejection process is already advanced when there is an increase in serum creatinine. Therefore, it is necessary to find proteins that can predict the allograft rejection process. In our study were able to identify changes in the concentration of plasma protein belonging to a network of protein interaction processes the acute phase response. We believe, therefore, that development of a routine diagnosis of these proteins can detect early acute rejection of renal allograft process, thus preventing its loss.
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Affiliation(s)
- Juliana D Perez
- Department of Medicine, Division of Nephrology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Maísa M Sakata
- Department of Medicine, Division of Nephrology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Juliana A Colucci
- Universidade de Santo Amaro, Programa em Medicina Populacional, São Paulo, Brazil
| | - Gláucio A Spinelli
- Nephrology Division, Hospital do Rim e Hipertensão, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Claudia R Felipe
- Nephrology Division, Hospital do Rim e Hipertensão, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | | | - José O Medina-Pestana
- Nephrology Division, Hospital do Rim e Hipertensão, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Hélio Tedesco-Silva
- Nephrology Division, Hospital do Rim e Hipertensão, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Nestor Schor
- Department of Medicine, Division of Nephrology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Dulce E Casarini
- Department of Medicine, Division of Nephrology, Universidade Federal de São Paulo, São Paulo, Brazil.
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12
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Nakayama M, Kabayama S, Ito S. The hydrogen molecule as antioxidant therapy: clinical application in hemodialysis and perspectives. RENAL REPLACEMENT THERAPY 2016. [DOI: 10.1186/s41100-016-0036-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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13
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Association between systemic oxidative stress and visual field damage in open-angle glaucoma. Sci Rep 2016; 6:25792. [PMID: 27165400 PMCID: PMC4863173 DOI: 10.1038/srep25792] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 04/22/2016] [Indexed: 01/04/2023] Open
Abstract
Local and systemic oxidative stress in intraocular pressure (IOP) elevation and optic nerve damage may be involved in the pathogenesis of glaucoma. We reported previously that a lower level of systemic antioxidative capacity is associated with IOP elevation in open-angle glaucoma (OAG). We assessed the correlation between the visual field sensitivity value, i.e., mean deviation (MD), and systemic levels of prooxidants and antioxidants by analyzing the blood biochemistry in 202 patients with glaucoma. Serum levels of lipid peroxides, ferric-reducing activity, and thiol antioxidant activity were measured using the diacron reactive oxygen metabolite (dROM), biological antioxidant potential (BAP), and sulfhydryl (SH) tests, respectively, using a free-radical analyzer. Univariate and multivariate analyses suggested a positive correlation between MD and BAP (R = 0.005 and P = 0.0442 by a multiple regression model adjusted for seven demographic parameters), but no significant associations between the MD and the dROM (R = 0.002 and P = 0.8556) and SH tests (R = −0.001 and P = 0.8280). Use of more antiglaucoma medication and primary OAG rather than normal tension glaucoma also were associated significantly with worse visual field damage. This large and comprehensive assessment of the association between systemic redox status and visual field damage in OAG suggests that lower systemic antioxidant capacity measured by ferric-reducing activity is associated with more severe visual field damage in OAG that partly explained its roles in IOP elevation.
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14
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Yagi H, Sumino H, Yoshida K, Aoki T, Tsunekawa K, Araki O, Kimura T, Nara M, Nakajima K, Murakami M. Biological Antioxidant Potential Negatively Correlates With Carotid Artery Intima-Media Thickness. Int Heart J 2016; 57:220-5. [PMID: 26973274 DOI: 10.1536/ihj.15-389] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Oxidative stress is a crucial factor in the pathogenesis and development of cardiovascular disease. Recently, simplified methods for the detection of reactive oxygen species (ROS) using the derivatives of reactive oxygen metabolites (d-ROMs) test as an index of ROS products and the biological antioxidant potential (BAP) test as an index of antioxidant potential have been utilized. These methods are easy to perform, quick, inexpensive since they use small equipment, and provide reliable results compared with established oxidative stress and antioxidant markers. Because oxidative stress has been shown to represent the balance of production of ROS and antioxidant capacity, it is more appropriate to evaluate ROS and antioxidant capacity simultaneously. However, no study has examined the associations among d-ROMs, BAP values, and carotid artery intima-media thickness (IMT) concurrently. Therefore, we studied the associations among d-ROMs, BAP values, and the carotid artery IMT. Carotid artery IMT, blood pressure (BP), fasting circulating d-ROMs, BAP, glucose metabolism, lipid, and C-reactive protein levels were measured in 95 subjects (age: 49.5 ± 13.8 years; men: 41; women: 54), including 42 healthy subjects and 53 patients with hypertension, dyslipidemia, and diabetes mellitus who were not on medication. The results of multiple regression analysis revealed that dependent carotid artery IMT determinants remained significantly associated with age, systolic BP, total cholesterol, and BAP, whereas dependent BAP determinants remained significantly associated with body mass index and carotid artery IMT. BAP was strongly correlated with carotid artery IMT in our cohort. Our results suggest that BAP may be a useful risk marker for carotid atherosclerosis.
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Affiliation(s)
- Hideki Yagi
- Department of Clinical Laboratory Medicine, Gunma University Graduate School of Medicine
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15
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Correlation between Systemic Oxidative Stress and Intraocular Pressure Level. PLoS One 2015; 10:e0133582. [PMID: 26186651 PMCID: PMC4506090 DOI: 10.1371/journal.pone.0133582] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Accepted: 06/29/2015] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The involvement of local and systemic oxidative stress in intraocular pressure (IOP) elevation and optic nerve damage has been hypothesized in the pathogenesis of glaucoma. We reported previously that the level of systemic antioxidative capacity is lower in patients with open-angle glaucoma than controls without glaucoma. Here, we assessed the correlation between IOP and systemic levels of prooxidants and antioxidants by analyzing the blood biochemistry in patients with glaucoma. METHODS Peripheral blood samples were collected from Japanese patients with primary open-angle glaucoma (n = 206), exfoliation syndrome (n = 199), and controls (n = 126). Serum levels of lipid peroxides, ferric-reducing activity, and thiol antioxidant activity were measured by diacron reactive oxygen metabolite (dROM), biological antioxidant potential (BAP), and sulfhydryl (SH) tests, respectively, using a free radical analyzer. To test the possible effect of oxidative stress on IOP levels, the patients were classified into one of four groups (Q1, Q2, Q3, and Q4, with Q1 having the lowest IOP) based on the quartile value of IOP. For this classification, the known highest IOP value in both the right and left eyes was regarded as each subject's IOP. For comparisons among the IOP groups, the differences were calculated using one-way analysis of variance followed by post-hoc unpaired t-tests. To adjust for differences in demographic characteristic distributions, the dROM, BAP, and SH test values were compared among the IOP groups using multiple logistic regression analysis; the odds ratio (OR) of each variable was calculated with the Q1 group as the reference. RESULTS The dROM and the SH levels did not differ significantly (p = 0.6704 and p = 0.6376, respectively) among the four IOP groups. The BAP levels differed significantly (p = 0.0115) among the four IOP groups; the value was significantly lower in the Q4 group (1,932 μmol/L) compared with the Q1 (2,023 μmol/L, p = 0.0042) and Q2 (2,003 μmol/L, p = 0.0302) groups and significantly lower in the Q3 group (1,948 μmol/L) than the Q1 (p = 0.0174) group. After adjustment for differences in various demographic characteristics, lower BAP values were significantly associated with the classification into higher IOP groups (Q3 group, p = 0.0261 and OR = 0.06/range; Q4 group, p = 0.0018 and OR = 0.04/range). The dROM and SH values did not reach significance in any comparisons. CONCLUSIONS Lower systemic antioxidant capacity measured by ferric-reducing activity is involved in the pathogenesis of open-angle glaucoma via its roles in IOP elevation.
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16
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Bossola M, Tazza L. Wishful Thinking: The Surprisingly Sparse Evidence for a Relationship between Oxidative Stress and Cardiovascular Disease in Hemodialysis Patients. Semin Dial 2015; 28:224-30. [PMID: 25641650 DOI: 10.1111/sdi.12345] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The increased frequency of cardiovascular disease observed in hemodialysis patients is secondary to the combination of many traditional (age, male sex, hypertension, smoking, diabetes mellitus, and dyslipidemia) and novel and uremia-related (inflammation, uremic toxins, adipokine imbalance, coagulation disorders, protein-energy wasting, volume overload, endothelial dysfunction, hyperparathyroidism, and subclinical hypothyroidism) risk factors. Usually, in the latter group, oxidative stress is included. However, after decades of research, it remains essentially unknown if oxidative stress has a causative role in the development of cardiovascular disease in long-term hemodialysis patients because adequate longitudinal studies are lacking. Data deriving from cross-sectional studies suggest that biomarkers of oxidative stress are associated with cardiovascular disease prevalence. Conversely, conflicting and inconclusive results have been obtained on the association between oxidative stress and coronary artery calcification, atherosclerosis, and all-cause and cardiovascular disease-related outcome. It is desirable that further studies are conducted on this topic in the near future.
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Affiliation(s)
- Maurizio Bossola
- Hemodialysis Unit, Division of Transplantation, Catholic University of the Sacred Heart, "Agostino Gemelli" University Hospital, Rome, Italy
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17
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Macri A, Scanarotti C, Bassi AM, Giuffrida S, Sangalli G, Traverso CE, Iester M. Evaluation of oxidative stress levels in the conjunctival epithelium of patients with or without dry eye, and dry eye patients treated with preservative-free hyaluronic acid 0.15 % and vitamin B12 eye drops. Graefes Arch Clin Exp Ophthalmol 2014; 253:425-30. [PMID: 25398660 DOI: 10.1007/s00417-014-2853-6] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 10/17/2014] [Accepted: 10/30/2014] [Indexed: 12/20/2022] Open
Abstract
PURPOSE Increased levels of oxidative stress have been seen in animal models of dry eye and in the conjunctival epithelial cells of patients with Sjögren's syndrome. The aims of this study were to compare the levels of oxidative stress in patients with dry eye and patients without dry eye and to evaluate the effects of treatment with preservative-free eye drops containing hyaluronic acid 0.15 % and vitamin B12 on oxidative stress and dry eye symptoms. METHODS Three cohorts of patients who were to undergo planned cataract surgery were enrolled: patients with dry eye randomized to either no treatment (n = 29) or treatment (n = 32) with hyaluronic acid/vitamin B12 eye drops, and patients without dry eye (n = 42). Patients were assessed by Schirmer's type I test, fluorescein clearance test (FCT), Break Up Time (BUT), and Ocular Surface Disease Index (OSDI). Lipid peroxidation, a marker of oxidative stress, was assessed by LP-CHOLOX test. RESULTS Compared with patients without dry eye, patients with dry eye had significantly increased levels of oxidative stress, higher OSDI and FCT scores, and significantly lower Schirmer's test and BUT scores. Treatment with eye drops containing hyaluronic acid 0.15 % and vitamin B12 was associated with significantly reduced levels of oxidative stress and OSDI and FCT scores and significantly increased Schirmer's test and BUT scores. CONCLUSIONS These findings indicate that oxidative stress is associated with dry eye and that hyaluronic acid/vitamin B12 eye drops may attenuate oxidative stress and inflammation, improving dry eye symptoms. Further study in controlled clinical trials is warranted.
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Affiliation(s)
- Angelo Macri
- U.O. Oculistica, IRCSS - Azienda Ospedaliera Universitaria San Martino IST - Istituto Nazionale per la Ricerca sul Cancro, Largo R. Benzi 10 - Padiglione Oculistica, Genoa, Italy,
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18
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Evaluation of assays for measurement of serum (anti)oxidants in hemodialysis patients. BIOMED RESEARCH INTERNATIONAL 2014; 2014:843157. [PMID: 24982909 PMCID: PMC4055181 DOI: 10.1155/2014/843157] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 04/24/2014] [Accepted: 05/05/2014] [Indexed: 01/17/2023]
Abstract
Background. Various biomarkers and assays have been used for assessment of (anti)oxidant status in hemodialysis patients, including those intended for measurement of serum total (anti)oxidants, most often as a part of panel biomarkers. Methods. Serum (anti)oxidant status was measured in 32 chronically hemodialyzed patients and in 47 healthy persons, using two oxidations and three antioxidant assays. Results. The patients before the hemodialysis session have had higher values of total oxidants in comparison to the healthy persons, with a further increase during the hemodialysis. These findings were confirmed with both oxidation assays, but they differ in the percentage of increase and the statistical significance. All three antioxidant assays showed significantly higher values of the total serum antioxidants in the patients before the hemodialysis session in comparison to the healthy persons, and their significant decrease during the hemodialysis. However, the assays differ in the percentage of decrease, its statistical significance, and the correlations with uric acid. Conclusion. The variability of results of total (anti)oxidants which are obtained using different assays should be taken into account when interpreting data from clinical studies of oxidative stress, especially in complex pathologies such as chronic hemodialysis.
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19
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Longitudinal relationship between plasma reactive oxygen metabolites and periodontal condition in the maintenance phase of periodontal treatment. DISEASE MARKERS 2014; 2014:489292. [PMID: 24825927 PMCID: PMC4009222 DOI: 10.1155/2014/489292] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 04/04/2014] [Indexed: 12/13/2022]
Abstract
Aim. The present cohort study describes the longitudinal relationship between plasma oxidative status and periodontitis progression during the maintenance phase of treatment. Materials and Methods. Forty-five patients (mean age 58.8 years) were monitored from 2008 to 2013. Periodontal conditions, including probing pocket depth (PPD) and clinical attachment level (CAL), were recorded. Measurements of plasma reactive oxygen metabolites (ROM) and biologic antioxidant potential (BAP) were performed to evaluate plasma oxidative status. The patients were assigned into 2 groups as low and high plasma ROM level using a cut-off value which was median of plasma ROM level at baseline. Results. In the subjects with low plasma ROM level at baseline, changes in mean CAL were positively correlated with changes in plasma ROM levels, bleeding on probing, and plaque control record, but not with PPD. In the subjects with high plasma ROM at baseline, changes in CAL were significantly associated with only PPD at baseline. On the other hands there were no significant associations between changes in CAL and those in plasma BAP levels. Conclusions. When plasma ROM level in periodontitis patients was low, increases in plasma ROM level were associated with those in CAL during the maintenance phase of treatment.
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20
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Ebisawa S, Kashima Y, Miyashita Y, Yamazaki S, Abe N, Saigusa T, Miura T, Motoki H, Izawa A, Ikeda U. Impact of endovascular therapy on oxidative stress in patients with peripheral artery disease. Circ J 2014; 78:1445-50. [PMID: 24670878 DOI: 10.1253/circj.cj-13-1341] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Atherosclerosis is believed to be caused by oxidative stress. Endovascular therapy (EVT) is effective for claudication of patients with peripheral artery disease (PAD). However, its effect on oxidative stress in PAD patients is unknown. Here, the impact of EVT on oxidative stress in PAD patients is investigated. METHODS AND RESULTS Twenty-five PAD patients (Rutherford stage II or III) who underwent EVT were enrolled. The levels of diacron-reactive oxygen metabolite (d-ROM; an oxidative stress marker), ankle-brachial index (ABI), and maximum walking distance at baseline and at 3 months after EVT were measured. As compared with baseline values, the maximum walking distance and ABI improved significantly after EVT (109.9±104.2 vs. 313.7±271.8m, P<0.0001; 0.61±0.15 vs. 0.91±0.13m, P<0.0001, respectively). The improved exercise capacity and arterial flow induced a significant decrease in d-ROM levels (from 472.8±64.8 to 390.2±46.7U.CARR; P<0.0001). The decrease in d-ROM levels after EVT was more prominent in PAD patients with a high baseline d-ROM level. The increased ABI (r=0.524, P=0.0007) and maximum walking distance (r=-0.416, P=0.039) after EVT were significantly correlated with the decreased d-ROM levels. CONCLUSIONS The improved exercise capacity and peripheral blood flow induced by EVT decreases oxidative stress in PAD patients.
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Affiliation(s)
- Soichiro Ebisawa
- Department of Cardiovascular Medicine, Shinshu University School of Medicine
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21
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Terawaki H, Zhu WJ, Matsuyama Y, Terada T, Takahashi Y, Sakurai K, Kabayama S, Miyazaki M, Itami N, Nakazawa R, Ito S, Era S, Nakayama M. Effect of a hydrogen (H2)-enriched solution on the albumin redox of hemodialysis patients. Hemodial Int 2013; 18:459-66. [PMID: 24274030 DOI: 10.1111/hdi.12112] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Elevated oxidative stress (OS) is associated with severe cardiovascular disease and premature death among patients treated with hemodialysis (HD). Oxidative stress is enhanced by contact between blood and dialysis membranes during HD sessions. This study aimed to clarify whether hydrogen (H2), which is a known antioxidant, is capable of suppressing increased OS induced during HD sessions. Eight patients on regular HD treatment were studied. Two HD sessions were performed in a cross-over design trial using standard and hydrogen-enriched solutions (mean of 50 p.p.b. H2; H2-HD). Blood samples were obtained from the inlet and outlet of the dialyzer during HD to determine changes in plasma levels of glutathione, hydrogen peroxide, and albumin redox state as a marker of OS. Comparison of inlet and outlet blood revealed significant decreases in total glutathione and reduced glutathione, as well as significant increases in hydrogen peroxide in both HD treatments. However, the mean proportion of reversibly oxidized albumin in outlet serum was significantly lower than that in inlet serum following the H2-HD session, whereas no significant changes were found in the standard solution session, suggesting that "intra-dialyzer" OS is reduced by H2 -HD. In conclusion, the application of H2-enriched solutions could ameliorate OS during HD.
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22
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Tsubone H, Hanafusa M, Endo M, Manabe N, Hiraga A, Ohmura H, Aida H. Effect of Treadmill Exercise and Hydrogen-rich Water Intake on Serum Oxidative and Anti-oxidative Metabolites in Serum of Thoroughbred Horses. J Equine Sci 2013; 24:1-8. [PMID: 24833996 PMCID: PMC4013981 DOI: 10.1294/jes.24.1] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2013] [Indexed: 01/13/2023] Open
Abstract
The present study aimed to clarify changes of oxidative stress and antioxidative
functions in treadmill-exercised Thoroughbred horses (n=5, 3 to 7 years old), using
recently developed techniques for measurement of serum d-ROMs for oxidative stress, and
BAP for antioxidative markers. Also, the effect of nasogastric administration of
hydrogen-rich water (HW) or placebo water preceding the treadmill exercise on these
parameters was examined. Each horse was subjected to a maximum level of treadmill exercise
in which the horses were exhausted at an average speed of 13.2 ± 0.84 m/sec. Blood samples
were taken 4 times, immediately before the intake of HW or placebo water at 30 min
preceding the treadmill exercise, immediately before the exercise (pre-exercise),
immediately after the exercise (post-exercise) and at 30 min following the exercise. In
all horses, both d-ROMs and BAP values significantly increased at post-exercise. The
increase in d-ROMs tended to be lower in the HW trial, as compared to the placebo trial at
pre-exercise. The increase in BAP was considerable at approximately 150% of the
pre-exercise values in both the HW and placebo treatment trials. The BAP/d-ROMs ratio was
significantly elevated at post-exercise in both treatment trials, while a significant
elevation was also observed at pre-exercise in the HW trial. BAP, d-ROM, and the BAP/d-ROM
ratio tended to decline at 30 min after the exercise, except BAP and BAP/d-ROMs in the
placebo trial. These results demonstrate that the marked elevation of oxidative stress and
anitioxidative functions occurred simultaneously in the intensively exercised horses, and
suggest a possibility that HW has some antioxidative efficacy.
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Affiliation(s)
- Hirokazu Tsubone
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Masakazu Hanafusa
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Maiko Endo
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 3145 Ago, Ibaraki-Kasama 319-0206, Japan
| | - Noboru Manabe
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 3145 Ago, Ibaraki-Kasama 319-0206, Japan
| | - Atsushi Hiraga
- Hidaka Training Farm, Japan Racing Association, 535-13 Aza-nisi Sha, Urakawa-cho, Hokkaido 057-0171, Japan
| | - Hajime Ohmura
- The Equine Research Institute, Japan Racing Association, 321-4 Tokami-cho, Utsunomiya, Tochigi 320-0856, Japan
| | - Hiroko Aida
- The Equine Research Institute, Japan Racing Association, 321-4 Tokami-cho, Utsunomiya, Tochigi 320-0856, Japan
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Comparative Analysis of Serum (Anti)oxidative Status Parаmeters in Healthy Persons. Int J Mol Sci 2013; 14:6106-15. [PMID: 23507749 PMCID: PMC3634506 DOI: 10.3390/ijms14036106] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 03/05/2013] [Accepted: 03/07/2013] [Indexed: 11/16/2022] Open
Abstract
Five antioxidant and two oxidative stress assays were applied to serum samples of 43 healthy males. The antioxidant tests showed different inter-assay correlations. A very good correlation of 0.807 was observed between the ferric reducing ability of plasma (FRAP) and total antioxidant status (TAS) assay and also a fair correlation of 0.501 between the biological antioxidant potential (BAP) and TAS assay. There was no statistically significant correlation between the BAP and FRAP assay. The anti-oxidant assays have a high correlation with uric acid, especially the TAS (0.922) and FRAP assay (0.869). The BAP assay has a much lower and no statistically significant correlation with uric acid (0.302), which makes BAP more suitable for the antioxidant status. The total thiol assay showed no statistically significant correlation with uric acid (0.114). The total thiol assay, which is based on a completely different principle, showed a good and statistically significant correlation with the BAP assay (0.510) and also to the TAS assay, but to a lower and not significant extent (0.279) and not with the FRAP assay (-0.008). The oxy-adsorbent test (OXY) assay has no correlation with any of the other assays tested. The oxidative stress assays, reactive oxygen metabolites (ROM) and total oxidant status (TOS), based on a different principle, do not show a statistically significant correlation with the serum samples in this study. Both assays showed a negative, but not significant, correlation with the antioxidant assays. In conclusion, the ROM, TOS, BAP and TTP assays are based on different principles and will have an additional value when a combination of these assays will be applied in large-scale population studies.
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Tanito M, Kaidzu S, Takai Y, Ohira A. Status of systemic oxidative stresses in patients with primary open-angle glaucoma and pseudoexfoliation syndrome. PLoS One 2012. [PMID: 23189153 PMCID: PMC3506654 DOI: 10.1371/journal.pone.0049680] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Background The involvement of local and systemic oxidative stress in intraocular pressure (IOP) elevation and optic nerve damage has been hypothesized in the pathogenesis of glaucoma. To test this, we measured the systemic levels of prooxidants and antioxidants by analyzing the blood biochemistry in patients with glaucoma. Methods Peripheral blood samples were collected from Japanese patients with primary open-angle glaucoma (PG) (n = 206), exfoliation syndrome (EX) (n = 199), and controls (n = 126). Plasma levels of lipid peroxides, ferric-reducing activity, and thiol antioxidant activity were measured by diacron reactive oxygen metabolites (dROM), biological antioxidant potential (BAP), and sulfhydryl (SH) tests, respectively, using a free radical analyzer. Results In the PG, EX, and control groups, the mean ± standard deviation values were 355±63, 357±69, and 348±56 (U. Carr), respectively, for dROM; 1,951±282, 1,969±252, and 2,033±252 (µmol/L), respectively, for BAP (µmol/L); and 614±98, 584±91, and 617±99 (µmol/L), respectively, for SH. The differences in the BAP values were significant between the PG and control groups (p = 0.0062), for SH between the EX and control groups (p = 0.0017), and for SH between the PG and EX groups (p = 0.0026). After adjustment for differences in age and sex among groups using multiple regression analysis, lower BAP values were correlated significantly with PG (p = 0.0155) and EX (p = 0.0049). Higher dROM values with and without glaucoma were correlated with female gender, and lower SH values with older age. There were no significant differences between the higher (≥21 mmHg) and lower (<21 mmHg) baseline IOPs in the PG group or between the presence or absence of glaucoma in the EX group. Conclusions Lower systemic antioxidant capacity that measured by ferric-reducing activity is involved in the pathogenesis of PG and EX.
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Affiliation(s)
- Masaki Tanito
- Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo, Shimane, Japan.
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Chen JT, Kotani K. An inverse relation between the Simplified Menopausal Index and biological antioxidant potential. Climacteric 2012; 16:288-91. [DOI: 10.3109/13697137.2012.696291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Baba Y, Sonoda JI, Hayashi S, Tosuji N, Sonoda S, Makisumi K, Nakajo M. Reduction of oxidative stress in liver cancer patients by oral green tea polyphenol tablets during hepatic arterial infusion chemotherapy. Exp Ther Med 2012. [PMID: 23181117 PMCID: PMC3503745 DOI: 10.3892/etm.2012.602] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Hepatic arterial infusion chemotherapy (HAI) using an implanted port system is the standard regimen for primary and metastatic liver cancers (MLCs). However, there have been few studies concerning HAI-induced oxidative stress and damage to the liver or other organs. The aim of the present study was to investigate the ability of green tea polyphenols (GTPs) to reduce the oxidative stress or increase the biological antioxidative potential in HAI-treated patients. A total of 19 patients with inoperable hepatocellular carcinoma (HCC) or MLC from colorectal malignancy were eligible for HAI with cisplatin (CDDP) and 5-fluorouracil (5FU). The study subjects were randomly assigned to either a 3 or a 6 oral GTP tablets per day group. Each tablet had a GTP content equivalent to 79 mg of epigallocatechin-3-gallate. The oxidative stress was assessed by measuring the levels of derivatives of reactive oxygen metabolites (d-ROMs) and the biological antioxidative potential (BAP) values in patient plasma using the Free Radical Analytical System 4 (FRAS4), and correlating the results with clinical laboratory data for the patients. The levels of d-ROMs were significantly reduced by the oral intake of 6 GTP tablets for 6–9 months (P=0.0463) but were not significantly reduced by the oral intake of 3 GTP tablets daily. BAP values remained constant in the 3 and 6 tablet groups for 6–9 months during the follow-up study. The total serum bilirubin (T-bil) levels increased significantly at 3 (P=0.028) and 9 (P=0.0151) months and the red blood cell (RBC) count decreased at 6 months (P=0.0458) after intake for the 6 GTP tablet group. Alkaline phosphatase (ALP) levels increased significantly at 9 months (P=0.0298). Cholinesterase (ChE) decreased significantly at 9 (P= 0.0127) and 12 (P= 0.0207) months after intake for the 3 GTP tablet group. The results indicate that the daily intake of 6 GTP tablets containing 474 mg polyphenols significantly reduces HAI-induced oxidative stress in HCC or MLC patients while the antioxidative potentials of the patients remain constant.
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Affiliation(s)
- Yasutaka Baba
- Department of Radiology, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima 890-8520, Japan
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Kim MK, Cho SW, Park YK. Long-term vegetarians have low oxidative stress, body fat, and cholesterol levels. Nutr Res Pract 2012; 6:155-61. [PMID: 22586505 PMCID: PMC3349038 DOI: 10.4162/nrp.2012.6.2.155] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 12/26/2011] [Accepted: 01/06/2012] [Indexed: 11/13/2022] Open
Abstract
Excessive oxidative stress and abnormal blood lipids may cause chronic diseases. This risk can be reduced by consuming an antioxidant- and fiber-rich vegetarian diet. We compared biomarkers of oxidative stress, antioxidant capacity, and lipid profiles of sex- and age-matched long-term vegetarians and omnivores in Korea. Forty-five vegetarians (23 men and 22 women; mean age, 49.5 ± 5.3 years), who had maintained a vegetarian diet for a minimum of 15 years, and 30 omnivores (15 men and 15 women; mean age, 48.9 ± 3.6 years) participated in this study. Their 1-day, 24-h recall, and 2-day dietary records were analyzed. Oxidative stress was measured by the levels of diacron reactive oxygen metabolites (d-ROM). Antioxidant status was determined by the biological antioxidant potential (BAP) and levels of endogenous antioxidant enzymes such as superoxide dismutase, catalase, and glutathione peroxidase. We observed that vegetarians had a significantly lower body fat percentage (21.6 ± 6.4%) than that of omnivores (25.4 ± 4.6%; P < 0.004). d-ROM levels were significantly lower in vegetarians than those in omnivores (331.82 ± 77.96 and 375.80 ± 67.26 Carratelli units; P < 0.011). Additionally, total cholesterol levels in the vegetarians and omnivores were 173.73 ± 31.42 mg/dL and 193.17 ± 37.89 mg/dL, respectively (P < 0.018). Low-density lipoprotein cholesterol was 101.36 ± 23.57 mg/dL and 120.60 ± 34.62 mg/dL (P < 0.005) in the vegetarians and omnivores, respectively, indicating that vegetarians had significantly lower lipid levels. Thus, oxidative stress, body fat, and cholesterol levels were lower in long-term vegetarians than those in omnivores.
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Affiliation(s)
- Mi Kyung Kim
- Department of Medical Nutrition, Graduate School of East-West Medical Science, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi 446-701, Korea
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Ikawa M, Arakawa K, Hamano T, Nagata M, Nakamoto Y, Kuriyama M, Koga Y, Yoneda M. Evaluation of systemic redox states in patients carrying the MELAS A3243G mutation in mitochondrial DNA. Eur Neurol 2012; 67:232-7. [PMID: 22517274 DOI: 10.1159/000336568] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Accepted: 01/14/2012] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS To clarify the change of systemic redox states in patients carrying the A3243G mutation in mitochondrial DNA (A3243G), we evaluated oxidative stress and antioxidant activity in the serum of patients. METHODS Oxidative stress and antioxidant activity in the serum samples obtained from 14 patients carrying A3243G and from 34 healthy controls were analyzed using the diacron-reactive oxygen metabolites (d-ROMs) and biological antioxidant potential (BAP) tests, respectively. RESULTS The mean d-ROMs level of all patients was significantly greater than that of the controls (p < 0.005), and the mean BAP/d-ROMs ratio of all patients was significantly lower than that of the controls (p < 0.02). In the patients with a history of stroke-like episodes (n = 10), both mean d-ROMs and BAP levels were increased compared with those of the controls (both p < 0.01). The mean BAP level of the patients without a history of stroke-like episodes (n = 4) was significantly decreased compared with that of the controls (p < 0.001), but the mean d-ROMs levels were not significantly different. CONCLUSION d-ROMs and BAP tests indicated that patients carrying A3243G are always exposed to underlying oxidative stress, even at a remission state of stroke-like episodes.
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Affiliation(s)
- Masamichi Ikawa
- Second Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
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Abstract
OBJECTIVES "IZUMI" is a new kind of vinegar resulting from an improvement in the manufacturing method of Kurosu, a traditional vinegar product made from unpolished rice. We evaluated the antioxidant activity of this new Kurosu by means of measuring the level of diacron-reactive oxygen metabolites (d-ROM), the biological antioxidant potential (BAP), as well as RBC deformability using the microchannel array flow method. PARTICIPANTS Ten healthy, untrained female volunteers participated in this study. MEASUREMENTS All subjects drank 50 ml of "IZUMI" on a daily basis, and blood samples were collected pre-"IZUMI" (I), after one month "IZUMI" consumption (II), and after two months "IZUMI" consumption (III). The subjects continuously wore a lifecorder during a 7-day period and the nutritional intake was measured before the initial blood sample collection. RESULTS There were no significant changes in weight, BMI, fat mass, or fat-free mass. There were no significant differences in daily energy consumption, physical activity and nutritional intake. Peripheral blood variables did not change significantly. The drinking of " IZUMI " increased serum BAP level gradually, and after 30 days it was significantly higher as compared to the pre-drinking level. The serum level of d-ROM and blood filtration time (BFT) decreased by drinking "IZUMI"; with d-ROM significantly lower than the pre-drinking level after 30 days and BFT significantly decreased after 60 days (all P < 0.05). CONCLUSIONS These results suggest that "IZUMI", a Kurosu containing a higher level of amino acids, increases antioxidant activity and reduces oxidative stress and blood filtration time in female subjects.
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Affiliation(s)
- M Nagashima
- Department of Sport Life Style Management, National Institute of Fitness and Sports in Kanoya, Kanoya City, Japan.
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Nishikawa T, Okamoto Y, Kodama Y, Tanabe T, Shinkoda Y, Kawano Y. Serum derivative of reactive oxygen metabolites (d-ROMs) in pediatric hemato-oncological patients with neutropenic fever. Pediatr Blood Cancer 2010; 55:91-4. [PMID: 20486174 DOI: 10.1002/pbc.22507] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Early markers for predicting the severity of neutropenic fever (NF) in patients with hemato-oncological patients have not yet been established. Reactive oxygen species are known to play an important role in the antimicrobial function of neutrophils. The aim of this study was to determine the serum levels of derivatives of reactive oxygen metabolites (d-ROMs) and the biological antioxidant potential (BAP) levels in these patients, and to investigate the associations between these levels and the severity of NF. PROCEDURE Twenty-seven pediatric hemato-oncological patients were enroled in this prospective study. Their median age was 10 years (range 1-19). Laboratory samples for C-reactive protein (CRP), d-ROMs, and BAP were collected at the onset of NF. The Free Radical Analytical System 4(R) was used to measure levels of d-ROMs and BAP. RESULTS A total 36 NF episodes were evaluated. Levels of d-ROMs in NF patients with systemic inflammatory response syndrome (SIRS, n = 7) were significantly lower than those in subjects without SIRS (n = 29; 197.6 vs. 314.1 U.CARR, P = 0.017). There were no statistically significant differences in CRP, BAP, WBC count, or neutrophil count at the onset. The peak levels of CRP were significantly higher in patients with SIRS than in those without SIRS (23.9 vs. 6.1 mg/dl, P = 0.0003). CONCLUSION Patients with low level of d-ROMs at the onset of NF should be observed stringently since they possibly have severe NF.
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Affiliation(s)
- Takuro Nishikawa
- Department of Pediatrics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan.
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Andersson H, Karlsen A, Blomhoff R, Raastad T, Kadi F. Plasma antioxidant responses and oxidative stress following a soccer game in elite female players. Scand J Med Sci Sports 2010; 20:600-8. [DOI: 10.1111/j.1600-0838.2009.00987.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Tamaki N, Tomofuji T, Maruyama T, Ekuni D, Yamanaka R, Takeuchi N, Yamamoto T. Relationship between periodontal condition and plasma reactive oxygen metabolites in patients in the maintenance phase of periodontal treatment. J Periodontol 2009; 79:2136-42. [PMID: 18980522 DOI: 10.1902/jop.2008.080082] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND The relationship between systemic antioxidative status and periodontal condition has been investigated in epidemiologic studies. However, little literature is available with regard to the correlation between systemic reactive oxygen species and periodontal condition. The purpose of this cross-sectional study was to investigate the relationship between plasma reactive oxygen metabolites (ROM) and periodontal condition in patients in the maintenance phase of periodontal treatment. METHODS Eighty-one subjects (mean age: 57.4 years) who had entered a periodontal maintenance program were examined for probing depth (PD) and clinical attachment level (CAL). Plasma levels of ROM and biologic antioxidant potential (BAP) were determined with a free radical electric evaluator. RESULTS The plasma level of ROM was positively correlated to mean CAL (r = 0.281; P = 0.011) and percentage of teeth with CAL > or =4 mm (r = 0.236; P = 0.034), but not mean PD (r = 0.196; P = 0.080). Logistic regression analysis showed that subjects with ROM levels >400 Carratelli units (CARR U) had significantly higher mean CAL compared to subjects with ROM < or =400 CARR U after adjusting for age, gender, and the number of teeth present (P = 0.011). However, the plasma level of BAP was not significantly correlated with the periodontal parameters. CONCLUSIONS A positive association was found between plasma oxidative status and CAL in patients in the maintenance phase of periodontal therapy. A systemic increase in oxidative stress may influence the rate of progression of periodontal disease.
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Affiliation(s)
- Naofumi Tamaki
- Department of Oral Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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Chen TS, Liou SY, Chang YL. Chemiluminescent analysis of plasma antioxidant capacity in uremic patients undergoing hemodialysis. Ren Fail 2009; 30:843-7. [PMID: 18925521 DOI: 10.1080/08860220802353827] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
OBJECTIVE Hemodialysis is a common therapeutic strategy for patients with end stage renal failure. During the hemodialytic process, the neutrophils are activated (neutrophil burst) due to the hemoincompatibility induced by hemodialysis. As a result, the activated neutrophils release reactive oxygen species (ROS), such as hydrogen peroxide, singlet oxygen, and hypochlorite, into the bloodstream and cause oxidative damage. METHODS This study investigated the antioxidant alteration of plasma in uremic patients undergoing hemodialysis by chemiluminescent analysis. The antioxidant capacities of plasma in scavenging hydrogen peroxide, singlet oxygen, and hypochlorite were investigated in this experiment. In addition, investigation of the ferric-reducing ability of plasma (FRAP) would be covered in this study as well. RESULTS This study found that after hemodialysis, the antioxidant capacities of plasma in scavenging hydrogen peroxide, singlet oxygen, and hypochlorite decreases 7.9%, 18.8%, and 18.9%, respectively. Moreover, the FRAP is reduced by 56%. We speculate that the loss of dialyzable solutes (such as uremic solutes and antioxidants with small molecular weight) in plasma resulted in its decrease in antioxidant capacity. CONCLUSION We therefore suggest that the supplement of antioxidants with small molecular weight is capable of regaining antioxidant defense in plasma and preventing oxidative damage induced by hemodialysis.
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Affiliation(s)
- Tung-Sheng Chen
- Department of Biomedical Engineering, Chung Yuan Christian University, Chung Li, Taiwan, ROC
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