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Hoshino S, Momma E, Koeda M, Hoshikawa Y, Tanabe T, Kawami N, Kitasako Y, Iwakiri K. In females, salivary secretion was significantly lower in patients with severe reflux esophagitis than in healthy controls. Esophagus 2024; 21:383-389. [PMID: 38536601 DOI: 10.1007/s10388-024-01052-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/19/2024] [Indexed: 06/27/2024]
Abstract
BACKGROUND The salivary secretion in patients with mild reflux esophagitis (RE) and non-erosive reflux disease is significantly lower in females, but not in males. However, sex differences in salivary secretion in patients with severe RE remain unknown. Therefore, the present study investigated sex differences in saliva secretion in patients with severe RE. METHODS Subjects consisted of 23 male patients with severe RE, 24 male healthy controls (HCs), 26 female patients with severe RE, and 25 female HCs. Saliva secretion was assessed as follows: each patient chewed sugarless gum for 3 min prior to endoscopy, and the amount and pH of saliva secreted before and after acid loading as an index of the acid-buffering capacity were measured. RESULTS In males, no significant differences were observed in the amount of saliva secretion, salivary pH, or the acid-buffering capacity between severe RE patients and HCs. In females, the amount of saliva secretion (severe RE: 2.4 [1.8-4.1], HCs: 5.3 [3.4-7.5], p = 0.0017), salivary pH (severe RE: 7.0 [6.7-7.3], HCs: 7.2 [7.1-7.3], p = 0.0455), and the acid-buffering capacity (severe RE: 5.9 [5.3-6.2], HCs: 6.2 [6.1-6.5], p = 0.0024) were significantly lower in severe RE patients than in HCs. CONCLUSION Among females, the salivary secretion was significantly lower in severe RE patients than in HCs. This reduction in salivary secretion may contribute to the pathophysiology of severe RE in females.
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Affiliation(s)
- Shintaro Hoshino
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Bunkyo-Ku, Tokyo, Japan
| | - Eri Momma
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Bunkyo-Ku, Tokyo, Japan
| | - Mai Koeda
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Bunkyo-Ku, Tokyo, Japan
| | - Yoshimasa Hoshikawa
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Bunkyo-Ku, Tokyo, Japan
| | - Tomohide Tanabe
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Bunkyo-Ku, Tokyo, Japan
| | - Noriyuki Kawami
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Bunkyo-Ku, Tokyo, Japan
| | - Yuichi Kitasako
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Bunkyo-Ku, Tokyo, Japan
- Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-Ku, Tokyo, Japan
- Dental Clinic, Ministry of Foreign Affairs, Chiyoda-Ku, Tokyo, Japan
| | - Katsuhiko Iwakiri
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Bunkyo-Ku, Tokyo, Japan.
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Hoshikawa Y, Momma E, Koeda M, Tanabe T, Hoshino S, Kawami N, Iwakiri K. Among females older than 50 years, saliva secretion is significantly lower in non-erosive reflux disease patients than in healthy controls. Esophagus 2024; 21:76-82. [PMID: 37843630 DOI: 10.1007/s10388-023-01025-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 09/28/2023] [Indexed: 10/17/2023]
Abstract
BACKGROUND Saliva secretion is significantly lower in patients with non-erosive reflux disease (NERD) than in healthy controls (HC). A previous study on HC showed that saliva secretion was lower in females than in males. Saliva secretion may be lower in female patients with NERD than in male patients. Therefore, the present study investigated sex differences in saliva secretion in patients with NERD. METHODS Subjects older than 50 years were included in the present study and consisted of 20 male patients with NERD, 19 male HC, 25 female patients with NERD, and 23 female HC. Saliva secretion was assessed as follows: each patient chewed sugar-free gum for 3 min prior to endoscopy, and the amount and pH of saliva before and after acid loading as an index of the acid-buffering capacity were measured. RESULTS In males, no significant differences were observed in the amount of stimulated saliva secretion or salivary pH between NERD patients and HC. However, the acid-buffering capacity (NERD: 6.1 [5.9-6.5], HC: 6.4 [6.2-6.6]) was significantly lower in NERD patients than in HC. In females, the amount of stimulated saliva secretion (NERD: 2.6 [2.0-4.1], HC: 5.8 [3.7-7.5]), salivary pH (NERD: 7.0 [6.8-7.2], HC: 7.2 [7.0-7.2]), and the acid-buffering capacity (NERD: 5.8 [5.4-6.2], HC: 6.2 [6.0-6.5]) were significantly lower in NERD patients than in HC. CONCLUSION Among females older than 50 years, saliva secretion was significantly lower in NERD patients than in HC. This reduction in saliva secretion may contribute to the pathophysiology of NERD in females.
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Affiliation(s)
- Yoshimasa Hoshikawa
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-Ku, Tokyo, Japan
| | - Eri Momma
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-Ku, Tokyo, Japan
| | - Mai Koeda
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-Ku, Tokyo, Japan
| | - Tomohide Tanabe
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-Ku, Tokyo, Japan
| | - Shintaro Hoshino
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-Ku, Tokyo, Japan
| | - Noriyuki Kawami
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-Ku, Tokyo, Japan
| | - Katsuhiko Iwakiri
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-Ku, Tokyo, Japan.
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Hoshino S, Momma E, Motomiya R, Tanabe T, Koeda M, Hoshikawa Y, Kawami N, Iwakiri K. Characteristics of proton pump inhibitor-resistant severe reflux esophagitis and efficacy of vonoprazan in elderly (older than 75 years) and non-elderly groups. JGH Open 2024; 8:e13023. [PMID: 38268954 PMCID: PMC10805484 DOI: 10.1002/jgh3.13023] [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: 06/23/2023] [Revised: 11/29/2023] [Accepted: 12/06/2023] [Indexed: 01/26/2024]
Abstract
Background and Aim Previous studies on age differences in proton pump inhibitor (PPI)-resistant reflux esophagitis (RE) have found that stenosis and bleeding complications were significantly more common in the elderly than in the non-elderly. We sought to examine differences between two groups of elderly (75 years or older) and non-elderly (<75 years) patients with (PPI)-resistant severe RE and also the efficacy of vonoprazan (VPZ) in these patients. Methods There were 14 patients in the elderly group and 15 in the non-elderly group. Information was obtained on patient background (sex, body mass index [BMI], gastric mucosal atrophy, and the presence of hernia and collagen disease), and all patients underwent the saliva secretion test and esophagogastroduodenoscopy (EGD). The saliva secretion test (amount of saliva secreted, salivary pH, and the acid-buffering capacity) was performed by chewing sugar-free gum for 3 min before EGD. The efficacy of VPZ in both groups was also assessed. Results Saliva secretion, sex, BMI, and the presence of gastric mucosal atrophy did not significantly differ between the two groups. The number of hernias larger than 4 cm was significantly higher in the elderly PPI-resistant group, and significantly more patients had collagen disease in the non-elderly group. The efficacy of VPZ was not significantly different between the two groups; however, 10 patients in the non-elderly group had collagen disease, and 4 did not achieve esophageal mucosal healing even with VPZ 20 mg. Conclusion The number of large hernias (>4 cm) was significantly higher in the elderly group, while significantly more non-elderly patients had collagen disease. In the non-elderly group with scleroderma, the efficacy of VPZ 20 mg may not be sufficient.
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Affiliation(s)
- Shintaro Hoshino
- Department of Gastroenterology, Nippon Medical SchoolGraduate School of MedicineBunkyo‐kuTokyoJapan
| | - Eri Momma
- Department of Gastroenterology, Nippon Medical SchoolGraduate School of MedicineBunkyo‐kuTokyoJapan
| | - Rina Motomiya
- Department of Gastroenterology, Nippon Medical SchoolGraduate School of MedicineBunkyo‐kuTokyoJapan
| | - Tomohide Tanabe
- Department of Gastroenterology, Nippon Medical SchoolGraduate School of MedicineBunkyo‐kuTokyoJapan
| | - Mai Koeda
- Department of Gastroenterology, Nippon Medical SchoolGraduate School of MedicineBunkyo‐kuTokyoJapan
| | - Yoshimasa Hoshikawa
- Department of Gastroenterology, Nippon Medical SchoolGraduate School of MedicineBunkyo‐kuTokyoJapan
| | - Noriyuki Kawami
- Department of Gastroenterology, Nippon Medical SchoolGraduate School of MedicineBunkyo‐kuTokyoJapan
| | - Katsuhiko Iwakiri
- Department of Gastroenterology, Nippon Medical SchoolGraduate School of MedicineBunkyo‐kuTokyoJapan
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Momma E, Koeda M, Hoshikawa Y, Tanabe T, Hoshino S, Kawami N, Iwakiri K. Significantly Lower Saliva Secretion in Females With Gastroesophageal Reflux Disease and Healthy Subjects Than in Males. Cureus 2023; 15:e39020. [PMID: 37323355 PMCID: PMC10265308 DOI: 10.7759/cureus.39020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/15/2023] [Indexed: 06/17/2023] Open
Abstract
OBJECTIVE Saliva secretion in healthy subjects is lower in females than in males. The present study investigated sex differences in saliva secretion in patients with gastroesophageal reflux disease (GERD) and healthy controls. METHODS This case-control study included 39 (male/female: 16/23) with non-erosive reflux disease (NERD), 49 (25/24) patients with mild reflux esophagitis, 45 (23/22) with severe reflux esophagitis (A1), and 46 (24/22) healthy controls. Saliva secretion was examined as follows: before endoscopy, patients chewed sugar-free gum for three minutes, and the amount and pH of saliva before and after acid loading as an index of acid-buffering capacity were evaluated. The relationships between saliva secretion and body mass index, height, and weight were also examined. RESULTS The amount of saliva secreted was significantly lower in females than in males in all four groups (NERD, mild reflux esophagitis, severe reflux esophagitis, and healthy controls). Salivary pH and acid-buffering capacity were similar in all groups. The amount of saliva secreted positively correlated with height and body weight, albeit more strongly with height. CONCLUSION A sex difference in saliva secretion exists in GERD patients, similar to healthy controls. Saliva secretion was significantly lower in female GERD patients than in male GERD patients.
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Affiliation(s)
- Eri Momma
- Department of Gastroenterology, Nippon Medical School, Graduate school of Medicine, Tokyo, JPN
| | - Mai Koeda
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Tokyo, JPN
| | - Yoshimasa Hoshikawa
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Tokyo, JPN
| | - Tomohide Tanabe
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Tokyo, JPN
| | - Shintaro Hoshino
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Tokyo, JPN
| | - Noriyuki Kawami
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Tokyo, JPN
| | - Katsuhiko Iwakiri
- Department of Gastroenterology, Nippon Medical School, Graduate School of Medicine, Tokyo, JPN
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