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May A, Gerhards H, Wollanke B. Effect of hospitalization on equine local intestinal immunoglobulin A (IgA) concentration measured in feces. J Equine Vet Sci 2024; 137:105078. [PMID: 38697372 DOI: 10.1016/j.jevs.2024.105078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/15/2024] [Accepted: 04/29/2024] [Indexed: 05/05/2024]
Abstract
During hospitalization horses may develop gastrointestinal conditions triggered by a stress-associated weak local immune system. The prospective, clinical trial was conducted to find out whether fecal immunoglobulin A (IgA) concentrations could be determined in hospitalized horses and how they changed during hospitalization and in response to various stressors. Samples were obtained from 110 horses and a control group (n = 14). At arrival in the hospital, horses were categorized into pain grades (1-5), and elective versus strenuous surgery (> 2 hours, traumatic and emergency procedures). Feces were collected on day 1, day 2, day 3, and day 7 in all horses. Blood samples were obtained at the same intervals, but additionally after general anaesthesia in horses undergoing surgery (day 2). IgA concentration in feces was determined by ELISA and measured in optical density at 450nm. The control group showed constant IgA concentrations on all days (mean value 0.30 OD450 ±SD 0.11, 1.26 mg/g; n = 11). After general anaesthesia fecal IgA concentrations decreased considerably independent of duration and type of surgery (P < 0.001 for elective and P = 0.043 for traumatic surgeries). High plasma cortisol concentrations were weakly correlated with low fecal IgA on the day after surgery (P = 0.012, day 3, correlation coefficient r = 0.113). Equine fecal IgA concentrations showed a decline associated with transport, surgery, and hospitalization in general, indicating that stress has an impact on the local intestinal immune function and may predispose horses for developing gastrointestinal diseases such as enterocolitis.
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Affiliation(s)
- A May
- Equine Hospital, Ludwig-Maximilians-University Munich, Sonnenstrasse 14 85764 Oberschleissheim, Germany.
| | - H Gerhards
- retired, former head of Equine Hospital, Ludwig-Maximilians-University Munich, Germany
| | - B Wollanke
- Equine Hospital, Ludwig-Maximilians-University Munich, Sonnenstrasse 14 85764 Oberschleissheim, Germany
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Guerrero JLS, Brito PHS, Ferreira MA, Arantes JDA, Rusch E, Oliveira BVDS, Velasco-Bolaños J, Carregaro AB, Dória RGS. Evaluation of Gastric pH and Gastrin Concentrations in Horses Subjected to General Inhalation Anesthesia in Dorsal Recumbency. Animals (Basel) 2024; 14:1183. [PMID: 38672331 PMCID: PMC11047614 DOI: 10.3390/ani14081183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/04/2024] [Accepted: 04/07/2024] [Indexed: 04/28/2024] Open
Abstract
The prevalence of gastric disorders in high-performance horses, especially gastric ulceration, ranges from 50 to 90%. These pathological conditions have negative impacts on athletic performance and health. This study was designed to evaluate changes in gastric pH during a 24 h period and to compare gastrin concentrations at different time points in horses undergoing general inhalation anesthesia and dorsal recumbency. Twenty-two mixed-breed mares weighing 400 ± 50 kg and aged 8 ± 2 years were used. Of these, eight were fasted for 8 h and submitted to 90 min of general inhalation anesthesia in dorsal recumbency. Gastric juice samples were collected prior to anesthesia (T0), and then at 15 min intervals during anesthesia (T15-T90). After recovery from anesthesia (45 ± 1 min), samples were collected every hour for 24 h (T1 to T24) for gastric juice pH measurement. During this period, mares had free access to Bermuda grass hay and water and were fed a commercial concentrate twice (T4 and T16). In a second group (control), four non-anesthetized mares were submitted to 8 h of fasting followed by nasogastric intubation. Gastric juice samples were then collected at T0, T15, T30, T45, T60, T75, and T90. During this period, mares did not receive food or water. After 45 min, mares had free access to Bermuda grass hay and water, and gastric juice samples were collected every hour for four hours (T1 to T4). In a third group comprising ten non-fasted, non-anesthetized mares with free access to Bermuda grass hay and water, gastric juice samples were collected 30 min after concentrate intake (T0). In anesthetized mares, blood gastrin levels were measured prior to anesthesia (8 h fasting; baseline), during recovery from anesthesia, and 4 months after the anesthetic procedure, 90 min after the morning meal. Mean values of gastric juice pH remained acidic during general anesthesia. Mean pH values were within the physiological range (4.52 ± 1.69) and did not differ significantly between time points (T15-T90; p > 0.05). After recovery from anesthesia, mean gastric pH values increased and remained in the alkaline range throughout the 24 h period of evaluation. Significant differences were observed between T0 (4.88 ± 2.38), T5 (7.08 ± 0.89), T8 (7.43 ± 0.22), T9 (7.28 ± 0.36), T11 (7.26 ± 0.71), T13 (6.74 ± 0.90), and T17 (6.94 ± 1.04) (p < 0.05). The mean gastric juice pH ranged from weakly acidic to neutral or weakly alkaline in all groups, regardless of food and water intake (i.e., in the fasted, non-fasted, and fed states). Mean gastric pH measured in the control group did not differ from values measured during the 24 h post-anesthesia period or in the non-fasted group. Gastrin concentrations increased significantly during the post-anesthetic period compared to baseline (20.15 ± 7.65 pg/mL and 15.15 ± 3.82 pg/mL respectively; p < 0.05). General inhalation anesthesia and dorsal recumbency did not affect gastric juice pH, which remained acidic and within the physiological range. Gastric juice pH was weakly alkaline after recovery from anesthesia and in the fasted and fed states. Serum gastrin levels increased in response to general inhalation anesthesia in dorsal recumbency and were not influenced by fasting. Preventive pharmacological measures are not required in horses submitted to general anesthesia and dorsal recumbency.
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Affiliation(s)
- Jesus Leonardo Suarez Guerrero
- Department of Veterinary Medicine, School of Animal Science and Food Engineering, University of São Paulo (USP), 225 Duque de Caxias Norte Avenue, Pirassununga 13635-900, SP, Brazil; (J.L.S.G.); (P.H.S.B.); (M.A.F.); (J.d.A.A.); (E.R.); (B.V.d.S.O.); (A.B.C.)
| | - Pedro Henrique Salles Brito
- Department of Veterinary Medicine, School of Animal Science and Food Engineering, University of São Paulo (USP), 225 Duque de Caxias Norte Avenue, Pirassununga 13635-900, SP, Brazil; (J.L.S.G.); (P.H.S.B.); (M.A.F.); (J.d.A.A.); (E.R.); (B.V.d.S.O.); (A.B.C.)
| | - Marília Alves Ferreira
- Department of Veterinary Medicine, School of Animal Science and Food Engineering, University of São Paulo (USP), 225 Duque de Caxias Norte Avenue, Pirassununga 13635-900, SP, Brazil; (J.L.S.G.); (P.H.S.B.); (M.A.F.); (J.d.A.A.); (E.R.); (B.V.d.S.O.); (A.B.C.)
| | - Julia de Assis Arantes
- Department of Veterinary Medicine, School of Animal Science and Food Engineering, University of São Paulo (USP), 225 Duque de Caxias Norte Avenue, Pirassununga 13635-900, SP, Brazil; (J.L.S.G.); (P.H.S.B.); (M.A.F.); (J.d.A.A.); (E.R.); (B.V.d.S.O.); (A.B.C.)
| | - Elidiane Rusch
- Department of Veterinary Medicine, School of Animal Science and Food Engineering, University of São Paulo (USP), 225 Duque de Caxias Norte Avenue, Pirassununga 13635-900, SP, Brazil; (J.L.S.G.); (P.H.S.B.); (M.A.F.); (J.d.A.A.); (E.R.); (B.V.d.S.O.); (A.B.C.)
| | - Brenda Valéria dos Santos Oliveira
- Department of Veterinary Medicine, School of Animal Science and Food Engineering, University of São Paulo (USP), 225 Duque de Caxias Norte Avenue, Pirassununga 13635-900, SP, Brazil; (J.L.S.G.); (P.H.S.B.); (M.A.F.); (J.d.A.A.); (E.R.); (B.V.d.S.O.); (A.B.C.)
| | - Juan Velasco-Bolaños
- Grupo de Investigación en Ciencias Agropecuarias (Group GIsCA), Facultad de Medicina Veterinaria y Zootecnia, Institución Universitaria Visión de las Américas, Pereira 660003, Colombia;
- Research Group Calidad de Leche y Epidemiología Veterinária (CLEV), Universidad de Caldas, Manizales 170004, Colombia
| | - Adriano Bonfim Carregaro
- Department of Veterinary Medicine, School of Animal Science and Food Engineering, University of São Paulo (USP), 225 Duque de Caxias Norte Avenue, Pirassununga 13635-900, SP, Brazil; (J.L.S.G.); (P.H.S.B.); (M.A.F.); (J.d.A.A.); (E.R.); (B.V.d.S.O.); (A.B.C.)
| | - Renata Gebara Sampaio Dória
- Department of Veterinary Medicine, School of Animal Science and Food Engineering, University of São Paulo (USP), 225 Duque de Caxias Norte Avenue, Pirassununga 13635-900, SP, Brazil; (J.L.S.G.); (P.H.S.B.); (M.A.F.); (J.d.A.A.); (E.R.); (B.V.d.S.O.); (A.B.C.)
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Ogawa M, Namikawa T, Oki T, Munekage M, Maeda H, Kitagawa H, Dabanaka K, Sugimoto T, Kobayashi M, Sakata O, Matsuda K, Hanazaki K. Evaluation of Perioperative Intestinal Motility Using a Newly Developed Real-Time Monitoring System During Surgery. World J Surg 2020; 45:451-458. [PMID: 33063197 DOI: 10.1007/s00268-020-05824-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND This study aimed to investigate perioperative intestinal motility using a novel bowel sound monitoring system in patients undergoing breast and neck surgery. MATERIALS AND METHODS This study enrolled 52 patients who underwent surgery for breast cancer, thyroid tumor, and parathyroid tumor at Kochi Medical School from May 2019 to June 2020. Perioperative bowel sound counts (BSCs) were recorded using a newly developed real-time analysis system in the operating theater. Clinical information and BSC per minute (cpm) data during the preanesthetic, preoperative, operative, postoperative periods, and period in recovery room were obtained to compare between each period. The Mann-Whitney U and Pearson Chi-square tests were used in data analysis. RESULTS The BSCs during the intraoperative period and postoperative period were significantly decreased compared to those during the preanesthetic period (0.07 cpm versus [vs.]. 1.4 cpm, P = 0.002 and 0.1 cpm vs. 1.4 cpm, P = 0.025, respectively). The preoperative BSC with a preanesthetic BSC < 1.4 was significantly lower than that with a preanesthetic BSC ≥ 1.4 (0.40 cpm vs. 1.78 cpm, P = 0.006). The preanesthetic, preoperative, and postoperative BSCs with an intraoperative BSC < 0.07 were significantly lower than those with an intraoperative BSC ≥ 0.07 (0.48 cpm vs. 2.83 cpm, P = 0.007; 0.40 cpm vs. 1.81 cpm, P = 0.008; and 0.07 cpm vs. 0.42 cpm, P = 0.006, respectively). CONCLUSION The real-time bowel sound analysis system demonstrated an inhibitory effect associated with anesthetic and surgical stress on intestinal motility as the BSC sequentially.
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Affiliation(s)
- Maho Ogawa
- Department of Surgery, Kochi Medical School, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan
| | - Tsutomu Namikawa
- Department of Surgery, Kochi Medical School, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan.
| | - Toyokazu Oki
- Department of Surgery, Kochi Medical School, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan
| | - Masaya Munekage
- Department of Surgery, Kochi Medical School, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan
| | - Hiromichi Maeda
- Department of Surgery, Kochi Medical School, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan
| | - Hiroyuki Kitagawa
- Department of Surgery, Kochi Medical School, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan
| | - Ken Dabanaka
- Department of Surgery, Kochi Medical School, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan
| | - Takeki Sugimoto
- Department of Surgery, Kochi Medical School, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan
| | - Michiya Kobayashi
- Department of Human Health and Medical Sciences, Kochi Medical School, Kochi, Japan
| | - Osamu Sakata
- Department of Electrical Engineering, Tokyo University of Science Faculty of Engineering, Tokyo, Japan
| | - Kenichi Matsuda
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Kazuhiro Hanazaki
- Department of Surgery, Kochi Medical School, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan
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