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Effectiveness of Acupuncture in the Treatment of Hyperemesis Gravidarum: A Systematic Review and Meta-Analysis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:2731446. [PMID: 34367299 PMCID: PMC8337134 DOI: 10.1155/2021/2731446] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 07/15/2021] [Indexed: 11/18/2022]
Abstract
Background Hyperemesis gravidarum (HG) is a common gastrointestinal disease afflicting gravidas. It usually results in hospital admission in early pregnancy. Objective Through a meta-analysis, this study intended to explore acupuncture's clinical efficacy in treating HG. Materials and Methods A comprehensive search of PubMed, the Cochrane Library, EMBASE, Web of Science, China National Knowledge Infrastructure (CNKI), Chinese Biological Medical (CBM), Wanfang Database, and China Science and Technology Journal (VIP) for published clinical randomized controlled trials (RCTs) of acupuncture for treating HG was conducted from the date of database creation to 20th January 2021. We also searched grey literature in four databases: Chinese Cochrane Center, Chinese Clinical Trial Registry, GreyNet International, and Open Grey from their inception to 20th January 2021. Two authors independently screened the literature, extracted data, and evaluated the quality of the literature with Cochrane Handbook 5.1.0 and Review Manager 5.2 software. Review Manager 5.2 and STATA 12.0 software were applied to analyze data. Heterogeneity analysis was performed by the Cochran Chi-square test and I 2 statistic. Egger's tests together with funnel plots were used to identify publication bias. Results A total of 16 trials covering 1043 gravidas were included. Compared with the conventional treatment, acupuncture had a significantly higher effective rate (OR: 8.11, 95% CI: 5.29∼12.43; P < 0.00001), a higher conversion rate of urine ketone (RR: 1.36, 95% CI: 1.15∼1.60; P=0.0003), an improvement rate of nausea and vomiting (OR: 26.44, 95% CI: 3.54∼197.31; P=0.001), and a relatively higher improvement rate of food intake (RR: 1.17, 95% CI: 1.01∼1.36; P=0.04). Acupuncture also shortened hospitalization time and manifested with a lower pregnancy termination rate and fewer adverse events. Nevertheless, no statistical variation in the improvement of nausea intensity, vomiting episodes, and lassitude symptom, recurrence rate, and serum potassium was observed. Conclusion Our study suggested that acupuncture was effective in treating HG. However, as the potential inferior quality and underlying publication bias were found in the included studies, there is a need for more superior-quality RCTs to examine their effectiveness and safety. PROSPERO registration number: CRD42021232187.
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Huang CS, Sun YH, Wang YT, Pan YH, Huang YC, Hsu CM, Tsai YF. Repeated transcutaneous electrical nerve stimulation of nonspecific acupoints of the upper body attenuates stress-induced visceral hypersensitivity in rats. Auton Neurosci 2019; 220:102556. [PMID: 31331689 DOI: 10.1016/j.autneu.2019.102556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 05/31/2019] [Accepted: 06/03/2019] [Indexed: 02/08/2023]
Abstract
Irritable bowel syndrome (IBS) is a common stress-related gastrointestinal disorder and visceral hypersensitivity (VH) is characteristically found in IBS patients. Transcutaneous electrical nerve stimulation (TENS) applied to certain acupoints has been shown to benefit IBS patients. Here, we investigated whether nonspecific acupoint is involved in the efficacy of TENS treatment for IBS. Twenty-five male rats were randomly assigned to four experimental groups and one sham-control group. The four experimental groups were defined as TENS-RR, TENS-RL, TENS-LR, and TENS-LL based on the location of the two TENS patches [right (R) or left (L)]. The former and latter letter pairs indicate that the patch locations were the upper chest and upper back, respectively. The heterotypic intermittent stress (HIS) protocol was performed for 16 days. VH was assessed by electromyography to evaluate response to rectal distention (RD). Modulated medium-frequency TENS, sweep range 1-10 Hz, amplitude slightly above the supra motor threshold, was applied 30 min per day followed by RD every second day for the final 7 days of the 16-day HIS period. VH was induced after the rats had been subjected to HIS for 10 days. A significant reduction of VH was observed only in the TENS-LL group compared with that in the sham-control group. These data suggest that repeated TENS treatment can alleviate stress-induced VH in rats. Further, whether TENS patches are attached to the left or right side of the body, which are nonspecific acupoints for gastrointestinal functions, may be an important factor in the treatment of stress-associated gastrointestinal symptoms.
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Affiliation(s)
- Chung-Shin Huang
- Department of Research, Raphael Humanistic Clinic, 11 F, No. 49 Guan-Chien Road, Taipei 100, Taiwan, ROC
| | - Ya-Hui Sun
- Department of Research, Raphael Humanistic Clinic, 11 F, No. 49 Guan-Chien Road, Taipei 100, Taiwan, ROC
| | - Yi-Ting Wang
- Department of Research, Raphael Humanistic Clinic, 11 F, No. 49 Guan-Chien Road, Taipei 100, Taiwan, ROC
| | - Yu-Hung Pan
- Department of Research, Raphael Humanistic Clinic, 11 F, No. 49 Guan-Chien Road, Taipei 100, Taiwan, ROC
| | - Ying-Chia Huang
- Department of Research, Raphael Humanistic Clinic, 11 F, No. 49 Guan-Chien Road, Taipei 100, Taiwan, ROC
| | - Chung-Ming Hsu
- Department of Research, Raphael Humanistic Clinic, 11 F, No. 49 Guan-Chien Road, Taipei 100, Taiwan, ROC
| | - Yuan-Feen Tsai
- Department of Research, Raphael Humanistic Clinic, 11 F, No. 49 Guan-Chien Road, Taipei 100, Taiwan, ROC; Department of Physiology, College of Medicine, National Taiwan University, No. 1 Jen-Ai Road, Section 1, Taipei 100, Taiwan, ROC.
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Chen JDZ, Ni M, Yin J. Electroacupuncture treatments for gut motility disorders. Neurogastroenterol Motil 2018; 30:e13393. [PMID: 29906324 DOI: 10.1111/nmo.13393] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 05/16/2018] [Indexed: 12/13/2022]
Abstract
Functional gastrointestinal (GI) diseases are common and there are patients who are refractory to medical therapies as not all treatments work in all patients. Consequently, a large number of patients with functional GI diseases use complementary and alternative medicine, such as acupuncture or electroacupuncture (EA). In this issue, Zheng et al. reported interesting results of a multi-center placebo-controlled clinical study on the use of EA for treating refractory functional dyspepsia; another study reported a multi-center clinical trial on EA for chronic functional constipation; Liang et al. studied mechanisms of EA involving enteric nervous system and neurotransmitters in treating constipation in rats. While controversial reports are available in the literature, EA with appropriate methodologies as shown in these recent studies is believed to be effective in treating certain functional GI diseases. In this mini-review, a number of clinical studies, including those included in this issue on the use of EA for treating gastro-esophageal reflux, functional dyspepsia, irritable bowel syndrome, and constipation are reviewed. Some critically important issues, such as the choice of stimulation parameters for EA, the administration frequency of the therapy, and the appropriate choice of placebo for clinical research are also discussed. Mechanisms of action involved in the therapeutic effects of EA for gut dysmotility and future research directions are also presented.
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Affiliation(s)
- J D Z Chen
- Johns Hopkins Center for Neurogastroenterology and Division of Gastroenterology and Hepatology, Baltimore, MD, USA
| | - M Ni
- National Center of Colorectal Diseases, The Third Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - J Yin
- Johns Hopkins Center for Neurogastroenterology and Division of Gastroenterology and Hepatology, Baltimore, MD, USA
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Führer M, Hammer J. Lack of an Effect of Gastric Capsaicin on the Rectal Component of the Gastrocolonic Response. Dig Dis Sci 2017; 62:3542-3549. [PMID: 29086328 DOI: 10.1007/s10620-017-4822-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 10/22/2017] [Indexed: 12/17/2022]
Abstract
UNLABELLED Luminal capsaicin induces local and distant reflexes in the upper gastrointestinal tract and stimulates lower gastrointestinal symptoms in susceptible persons. We aimed to evaluate the effect of gastric capsaicin on rectal motor function and sensation. METHODS Eighteen healthy volunteers participated twice, at least 1 week apart, in this double-blind, placebo-controlled crossover study. Participants swallowed a gastric tube for capsaicin or saline infusion. A barostat tube was placed in the rectum to measure rectal tone before and during gastric capsaicin (40 µg/ml, 2.5 ml/min) or placebo infusion and to conduct distension experiments before and after gastric infusions. Gastric infusions were terminated after 60 min or when epigastric discomfort occurred. Differences in rectal tone, compliance, and sensitivity between gastric placebo and gastric capsaicin were determined. RESULTS On both study days, basal rectal volumes, compliance, and sensitivity parameters were comparable (NS) before gastric infusions. Gastric capsaicin infusion induced epigastric discomfort that necessitated termination of infusion after 29.6 ± 12.3 min (saline: 54.7 ± 8.9 min; p < 0.01). Rectal tone, aggregate perception scores, and rectal compliance did not differ between placebo and capsaicin trials (p > 0.05). Rectal tone increased significantly only when capsaicin induced epigastric discomfort (p < 0.05). The reproducibility of the barostat trial was acceptable with significant correlations of volumes, pressures (< 0.05; r 2 from 0.41 to 0.55), rectal compliance (p < 0.01; r 2 = 0.44), and aggregate perception scores (p values all < 0.05; r 2 from 0.44 to 0.0.65) between the two barostat trials. CONCLUSION Gastric perfusion with capsaicin does not directly influence rectal physiology through a reflex arc.
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Affiliation(s)
- Martina Führer
- Abteilung für Gastroenterologie und Hepatologie, Universitätsklinik für Innere Medizin 3, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | - Johann Hammer
- Abteilung für Gastroenterologie und Hepatologie, Universitätsklinik für Innere Medizin 3, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria. .,Faculty of Health and Behavioural Sciences, The University of Queensland, Herston, Brisbane, QLD, 4029, Australia.
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Ling Y, Yuan L, Haifeng Z, Xiaopeng M, Chunhui B, Huangan W, Chen Z, Guanghong D, Li Q, Shuang Z. Effect of warming moxibustion Tianshu (ST 25, bilateral) and Qihai (CV 6) for the treatment of diarrhea-dominant irritable bowel syndrome: a patient-blinded pilot trial with orthogonal design. J TRADIT CHIN MED 2017. [DOI: 10.1016/s0254-6272(17)30161-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Lowe C, Aiken A, Day AG, Depew W, Vanner SJ. Sham acupuncture is as efficacious as true acupuncture for the treatment of IBS: A randomized placebo controlled trial. Neurogastroenterol Motil 2017; 29. [PMID: 28251729 DOI: 10.1111/nmo.13040] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 01/09/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Irritable bowel syndrome (IBS) patients increasingly seek out acupuncture therapy to alleviate symptoms, but it is unclear whether the benefit is due to a treatment-specific effect or a placebo response. This study examined whether true acupuncture is superior to sham acupuncture in relieving IBS symptoms and whether benefits were linked to purported acupuncture mechanisms. METHODS A double blind sham controlled acupuncture study was conducted with Rome I IBS patients receiving twice weekly true acupuncture for 4 weeks (n=43) or sham acupuncture (n=36). Patients returned at 12 weeks for a follow-up review. The primary endpoint of success as determined by whether patients met or exceeded their established goal for percentage symptom improvement. Questionnaires were completed for symptom severity scores, SF-36 and IBS-36 QOL tools, McGill pain score, and Pittsburg Sleep Quality Index. A subset of patients underwent barostat measurements of rectal sensation at baseline and 4 weeks. KEY RESULTS A total of 53% in the true acupuncture group met their criteria for a successful treatment intervention, but this did not differ significantly from the sham group (42%). IBS symptom scores similarly improved in both groups. Scores also improved in the IBS-36, SF-36, and the Pittsburg Sleep Quality Index, but did not differ between groups. Rectal sensory thresholds were increased in both groups following treatment and pain scores decreased; however, these changes were similar between groups. CONCLUSIONS & INFERENCES The lack of differences in symptom outcomes between sham and true treatment acupuncture suggests that acupuncture does not have a specific treatment effect in IBS.
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Affiliation(s)
- C Lowe
- Gastrointestinal Diseases Research Unit (GIDRU), Kingston General Hospital, Queen's University, Kingston, ON, Canada
| | - A Aiken
- School of Rehabilitation Therapy, Queen's University, Kingston, ON, Canada
| | - A G Day
- Biostatician, Kingston General Hospital, Kingston, ON, Canada
| | - W Depew
- Gastrointestinal Diseases Research Unit (GIDRU), Kingston General Hospital, Queen's University, Kingston, ON, Canada
| | - S J Vanner
- Gastrointestinal Diseases Research Unit (GIDRU), Kingston General Hospital, Queen's University, Kingston, ON, Canada
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Abstract
The psychophysiology of visceral pain is--different from cardiac psychophysiology--much less well investigated due to the invasiveness of its methods and problems associated with reliably and reproducibly stimulating as well as recording of the gastrointestinal tract. Despite these problems, the last 30 years have documented a number of psychophysiological phenomena such as the perception (interoception) of visceral stimuli, the effect of emotions and stress on visceral sensations, and the effect of visceral processes on cortical processing. This was mainly due to the application of neurophysiological techniques (cortical imaging and stimulation) in these investigations.
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Qi DB, Li WM. Effects of electroacupuncture on expression of c-fos protein and N-methyl-D-aspartate receptor 1 in the rostral ventromedial medulla of rats with chronic visceral hyperalgesia. ACTA ACUST UNITED AC 2013; 10:416-23. [PMID: 22500715 DOI: 10.3736/jcim20120410] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Acupuncture has been clinically proved to be effective in treating abdominal pain in patients with irritable bowel syndrome (IBS). However, its neurobiological mechanism remains largely unexplored. The aim of this study was to investigate the effect of electroacupuncture (EA) in relieving chronic visceral hyperalgesia and the possible involvement of N-methyl-D-aspartate receptor 1 (NR1) in rostral ventromedial medulla (RVM) of the brain in an IBS rat model. METHODS To establish the IBS rat model, male Sprague-Dawley neonatal rats received colon mechanical irritation on a daily basis from the 9th to the 22nd day after their birth. After a resting period of another two to four weeks, behavioral tests of pain threshold pressure (PTP) and abdominal withdrawal reflex (AWR) responding to colorectal distention (CRD) stimuli were conducted to judge the colorectal sensitive situation. Then administration of EA at acupoints of Zusanli (ST36) and Shangjuxu (ST37) bilaterally in the hind limbs was repeated four times every other day, while sham-EA was done by inserting needles at similar acupoints without electrical stimulation. Immunohistochemical method was used to display the expression of proto-oncogene protein c-fos and NR1 in RVM of rats. RESULTS The results demonstrated that the PTP values and AWR scores, in response to the CRD stimuli, significantly decreased and increased, respectively (P<0.01, P<0.01), while the number of immunoreactive neurons of c-fos protein and NR1 significantly increased in nucleus reticularis gigantocellularis (Gi), nucleus lateralis paragigantocellularis (LPGi), nucleus reticularis gigantocellularis pars alpha (GiA) and nucleus raphe magnus (NRM) of RVM in IBS model rats compared with the normal rats (P<0.05). After EA treatment, PTP values and AWR scores significantly increased and decreased, respectively (P<0.01, P<0.05); the number of immunoreactive neurons of c-fos and NR1 significantly decreased respectively in Gi, LPGi and GiA and in Gi, LPGi, GiA and NRM (P<0.05). No such effects on PTP values, AWR scores and the number of immunoreactive neurons of c-fos and NR1 were observed after sham-EA treatment. CONCLUSION These data provide the evidence that EA can relieve chronic visceral hyperalgesia in rats with IBS, and such an effect may be correlated with inhibitory modulation of hyperactivity of neurons by means of down-regulating the high expression of NR1 in RVM of IBS model rats.
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Affiliation(s)
- De-bo Qi
- Laboratory of Neural Network and Systems Biology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Komericki P, Akkilic-Materna M, Strimitzer T, Weyermair K, Hammer HF, Aberer W. Oral xylose isomerase decreases breath hydrogen excretion and improves gastrointestinal symptoms in fructose malabsorption - a double-blind, placebo-controlled study. Aliment Pharmacol Ther 2012; 36:980-7. [PMID: 23002720 DOI: 10.1111/apt.12057] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Revised: 07/04/2012] [Accepted: 09/05/2012] [Indexed: 02/06/2023]
Abstract
BACKGROUND Incomplete resorption of fructose results in increased colonic hydrogen production and is a frequent cause of abdominal symptoms. The only treatment available is diet. AIM To study whether orally administered xylose isomerase (XI), an enzyme that catalyses the reversible isomerisation of glucose and fructose, can decrease breath hydrogen excretion in patients with fructose malabsorption. METHODS Patients received 25 g fructose in 100 mL water together with either placebo or XI capsules. Primary endpoint was the reduction in breath hydrogen excretion, as assessed by the area under the breath hydrogen curve over 4 h (AUC). A secondary endpoint was the reduction in abdominal pain, bloating and nausea assessed on a visual analogue scale (VAS, range: 0-10). A P value <0.05 was considered statistically significant. RESULTS Sixty-five patients in whom fructose malabsorption had been diagnosed by positive breath hydrogen test within the previous year, were included in the study [15 males, 50 females; mean age 43.3 (s.d. = 14.4), range: 21-73 years]. The median AUC was 885 ppm/240 min in the XI group compared to 2071 ppm/240 min in the placebo group (P = 0.00). Median scores for abdominal pain (0.7 vs. 1.3) and nausea (0.2 vs. 0.6), but not for bloating (P = 0.053), were significantly improved after XI (P = 0.009 and P = 0.005) as compared with placebo. CONCLUSIONS Oral administration of xylose isomerase significantly decreased breath hydrogen excretion after ingestion of a watery fructose solution. Nausea and abdominal pain were significantly improved by xylose isomerase.
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Affiliation(s)
- P Komericki
- Department of Environmental Dermatology and Venereology, Medical University of Graz, Graz, Austria.
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Chu WC, Wu JC, Yew DT, Zhang L, Shi L, Yeung DK, Wang D, Tong RK, Chan Y, Lao L, Leung PC, Berman BM, Sung JJ. Does acupuncture therapy alter activation of neural pathway for pain perception in irritable bowel syndrome?: a comparative study of true and sham acupuncture using functional magnetic resonance imaging. J Neurogastroenterol Motil 2012; 18:305-16. [PMID: 22837879 PMCID: PMC3400819 DOI: 10.5056/jnm.2012.18.3.305] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 02/16/2012] [Accepted: 02/18/2012] [Indexed: 12/13/2022] Open
Abstract
Background/Aims Patients with irritable bowel syndrome (IBS) are characterized by abnormal central processing with altered brain activation in response to visceral nociceptive signals. The effect of electroacupuncture (EA) on IBS patients is unclear. The study is set to study the effect of EA on brain activation during noxious rectal distension in IBS patients using a randomized sham-controlled model. Methods Thirty IBS-diarrhea patients were randomized to true electroacupuncture or sham acupuncture. Functional MRI was performed to evaluate cerebral activation at the following time points: (1) baseline when there was rectal distension only, (2) rectal distension during application of EA, (3) rectal distension after cessation of EA and (4) EA alone with no rectal distension. Group comparison was made under each condition using SPM5 program. Results Rectal distension induced significant activation of the anterior cingulated cortex, prefrontal cortex, thalamus, temporal regions and cerebellum at baseline. During and immediately after EA, increased cerebral activation from baseline was observed in the anterior cingulated cortex, bilateral prefrontal cortex, thalamus, temporal regions and right insula in both groups. However, true electroacupuncture led to significantly higher activation at right insula, as well as pulvinar and medial nucleus of the thalamus when compared to sham acupuncture. Conclusions We postulate that acupuncture might have the potential effect of pain modulation in IBS by 2 actions: (1) modulation of serotonin pathway at insula and (2) modulation of mood and affection in higher cortical center via ascending pathway at the pulvinar and medial nucleus of the thalamus.
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Affiliation(s)
- Winnie Cw Chu
- Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, NT, Hong Kong
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Chu WC, Wu JC, Yew DT, Zhang L, Shi L, Yeung DK, Wang D, Tong RK, Chan Y, Lao L, Leung PC, Berman BM, Sung JJ. Does acupuncture therapy alter activation of neural pathway for pain perception in irritable bowel syndrome?: a comparative study of true and sham acupuncture using functional magnetic resonance imaging. J Neurogastroenterol Motil 2012. [PMID: 22837879 DOI: 10.5056/jnm] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND/AIMS Patients with irritable bowel syndrome (IBS) are characterized by abnormal central processing with altered brain activation in response to visceral nociceptive signals. The effect of electroacupuncture (EA) on IBS patients is unclear. The study is set to study the effect of EA on brain activation during noxious rectal distension in IBS patients using a randomized sham-controlled model. METHODS Thirty IBS-diarrhea patients were randomized to true electroacupuncture or sham acupuncture. Functional MRI was performed to evaluate cerebral activation at the following time points: (1) baseline when there was rectal distension only, (2) rectal distension during application of EA, (3) rectal distension after cessation of EA and (4) EA alone with no rectal distension. Group comparison was made under each condition using SPM5 program. RESULTS Rectal distension induced significant activation of the anterior cingulated cortex, prefrontal cortex, thalamus, temporal regions and cerebellum at baseline. During and immediately after EA, increased cerebral activation from baseline was observed in the anterior cingulated cortex, bilateral prefrontal cortex, thalamus, temporal regions and right insula in both groups. However, true electroacupuncture led to significantly higher activation at right insula, as well as pulvinar and medial nucleus of the thalamus when compared to sham acupuncture. CONCLUSIONS We postulate that acupuncture might have the potential effect of pain modulation in IBS by 2 actions: (1) modulation of serotonin pathway at insula and (2) modulation of mood and affection in higher cortical center via ascending pathway at the pulvinar and medial nucleus of the thalamus.
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Affiliation(s)
- Winnie Cw Chu
- Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, NT, Hong Kong
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Wu JC, Ziea ET, Lao L, Lam EF, Chan CS, Liang AY, Chu SL, Yew DT, Berman BM, Sung JJ. Effect of electroacupuncture on visceral hyperalgesia, serotonin and fos expression in an animal model of irritable bowel syndrome. J Neurogastroenterol Motil 2010; 16:306-14. [PMID: 20680170 PMCID: PMC2912124 DOI: 10.5056/jnm.2010.16.3.306] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2010] [Revised: 07/14/2010] [Accepted: 07/15/2010] [Indexed: 12/13/2022] Open
Abstract
Background/Aims While it is well established that acupuncture relieves somatic pain, its therapeutic effect on visceral pain such as irritable bowel syndrome (IBS) is unclear. We evaluated the effect of acupuncture in treating visceral hyperalgesia in an animal model. Methods Sprague-Dawley rats (n = 8 per group) with prior neonatal maternal separation stress were randomly allocated to receive 3-day treatment of either electroacupuncture (EA) or sham acupuncture at acupoint ST-36. Another group of rats without prior maternal separation was included as non-handled controls. Colorectal distension was performed on the day after acupuncture treatment. The 3 groups were compared for pain threshold as determined by abdominal withdrawal reflex and visceromotor response as measured by electromyogram. Colon, spinal cord, and brainstem were sampled for topographic distribution and quantitative assessment of serotonin and Fos expression by immunohistochemistry. Results Rats in EA group had significantly higher pain threshold compared to those in sham acpuncture group (25.0 ± 5.7 mmHg vs 18.7 ± 5.2 mmHg, p = 0.01) and it was comparable with that of non-handled treatment naïve controls (29.4 ± 9.3 mmHg, p = 0.28). They also had lower visceromotor response as measured by electromyogram compared to those received sham acupuncture at all colorectal distension pressures. EA significantly suppressed Fos expression in doral raphe nuclei of brainstem, superficial dorsal horn of spinal cord and colonic epithelium but suppressed 5-HT expression only in brainstem and spinal cord. Conclusions Electro acupuncture attenuates visceral hyperlagesia through down-regulation of central serotonergic activities in the brain-gut axis.
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Affiliation(s)
- Justin Cy Wu
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong
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Stuardi T, Atkin K. How Acupuncturists Envision Treating Irritable Bowel Syndrome: A Pre-Trial Analysis. Med Acupunct 2010. [DOI: 10.1089/acu.2009.0726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Tracy Stuardi
- Department of Health Sciences, University of York, York, UK
| | - Karl Atkin
- Department of Health Sciences, University of York, York, UK
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Yin J, Chen JDZ. Gastrointestinal motility disorders and acupuncture. Auton Neurosci 2010; 157:31-7. [PMID: 20363196 DOI: 10.1016/j.autneu.2010.03.007] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2009] [Revised: 03/08/2010] [Accepted: 03/09/2010] [Indexed: 12/11/2022]
Abstract
During the last decades, numerous studies have been performed to investigate the effects and mechanisms of acupuncture or electroacupuncture (EA) on gastrointestinal motility and patients with functional gastrointestinal diseases. A PubMed search was performed on this topic and all available studies published in English have been reviewed and evaluated. This review is organized based on the gastrointestinal organ (from the esophagus to the colon), components of gastrointestinal motility and the functional diseases related to specific motility disorders. It was found that the effects of acupuncture or EA on gastrointestinal motility were fairly consistent and the major acupuncture points used in these studies were ST36 and PC6. Gastric motility has been mostly studied, whereas much less information is available on the effect of EA on small and large intestinal motility or related disorders. A number of clinical studies have been published, investigating the therapeutic effects of EA on a number of functional gastrointestinal diseases, such as gastroesophageal reflux, functional dyspepsia and irritable bowel syndrome. However, the findings of these clinical studies were inconclusive. In summary, acupuncture or EA is able to alter gastrointestinal motility functions and improve gastrointestinal motility disorders. However, more studies are needed to establish the therapeutic roles of EA in treating functional gastrointestinal diseases.
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Affiliation(s)
- Jieyun Yin
- Division of Gastroenterology, Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX, USA
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Liu HR, Wang XM, Zhou EH, Shi Y, Li N, Yuan LS, Wu HG. Acupuncture at both ST25 and ST37 improves the pain threshold of chronic visceral hypersensitivity rats. Neurochem Res 2009; 34:1914-8. [PMID: 19387829 DOI: 10.1007/s11064-009-9972-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2008] [Accepted: 04/07/2009] [Indexed: 02/06/2023]
Abstract
Previous studies demonstrated the efficacy of electro-acupuncture (EA) in relieving chronic visceral hypersensitivity (CVH) in IBS rats. However, ST25 which is a key acupoint for patients with IBS has not been reported in these experiments. Eight CVH rats were treated by EA at both ST25 and ST37 for 20 min, once daily for seven consecutive days, model rats (n = 8) and normal rats (n = 8) as controls. After the first EA treatment, the abdominal withdrawal reflex scores were investigated to evaluate the pain threshold. After seven EA treatments, the concentrations of 5-hydroxytryptamine (5-HT), 5-HT3 receptor (5-HT3R) and 5-HT4 receptor (5-HT4R) in colon tissue were assayed quantitatively by enzyme-linked immunosorbent assay. The results showed that EA improved the pain threshold of CVH rats, reduced the 5-HT concentration and increased the 5-HT4R concentration, but had no effect on the 5-HT3R concentration. Further studies are needed to optimize the choice of two-matching points for EA in the treatment of CVH rats.
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Affiliation(s)
- Hui-Rong Liu
- First Affiliated Hospital of Shantou University Medical College, Guangdong Province, People's Republic of China.
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16
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Kelley JM, Boulos PR, Rubin PAD, Kaptchuk TJ. Mirror, mirror on the wall: placebo effects that exist only in the eye of the beholder. J Eval Clin Pract 2009; 15:292-8. [PMID: 19335487 DOI: 10.1111/j.1365-2753.2008.00999.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Rationale The extent to which placebo effects can be driven exclusively by subjective impressions of improvement in the absence of any independent corroboration is unclear. Methods Thirty-six self-referred patients were treated with a light therapy device intended to rejuvenate facial skin. At each of eight weekly treatments, participants' facial skin was exposed for 40 seconds to pulses of multispectral LED-generated light in the range of 588 nm wavelength at 0.1 J cm(-2). Outcomes were assessed by participants as well as by the treating doctor and by blinded, expert raters. Results Patients reported robust and statistically significant improvements in seven facial features at the conclusion of the 8-week treatment regimen as well as at 1-month follow-up (for all comparisons, P </= 0.003, median d = 1.14). In sharp contrast, both the treating doctor and blinded, expert raters were unable to detect any improvement whatsoever (for all comparisons, P > 0.05). Moreover, effect sizes were close to zero and in the opposite direction from improvement (median d = -0.06 for doctor ratings; and for observer ratings, there was only a 46% success rate at identifying post-treatment as compared with pre-treatment photographs). Conclusion The robust placebo responses documented in this trial were confined to the subjective impressions of the patients. Neither the treating doctor nor blinded, expert raters could detect any improvement. Thus, patients can perceive improvement in medical interventions in the absence of any independent corroboration that improvement has occurred. This result is used a heuristic to more clearly define the components of the placebo response.
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Affiliation(s)
- John M Kelley
- Department of Psychology, Endicott College and Harvard Medical School, Beverly, MA, USA
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17
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Affiliation(s)
- Arine M Vlieger
- Department of Pediatrics, St. Antonius Hospital, Nieuwegein, The Netherlands.
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18
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Lund I, Lundeberg T. Is it all about sex? Acupuncture for the treatment of pain from a biological and gender perspective. Acupunct Med 2008; 26:33-45. [PMID: 18356797 DOI: 10.1136/aim.26.1.33] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Pain is a unique personal experience showing variability where gender and sex related effects might contribute. The mechanisms underlying the differences between women and men are currently unknown but are likely to be complex and involving interactions between biological, sociocultural and psychological aspects. In women, painful experimental stimuli are generally reported to produce a greater intensity of pain than in men. Clinical pain is often reported with higher severity and frequency, longer duration, and present in a greater number of body regions in women than in men. Women are also more likely to experience a number of painful conditions such as fibromyalgia, temporomandibular dysfunction, migraine, rheumatoid arthritis and irritable bowel syndrome. With regard to biological factors, quantitative as well as qualitative differences in the endogenous pain inhibitory systems have been implicated, as well as an influence of gonadal hormones. Psychosocial factors like sex role beliefs, pain coping strategies, and pain related expectancies may also contribute to the differences. Being exposed to repeated painful visceral events (eg menses, labour) during life may contribute to an increased sensitivity to, and greater prevalence of, pain among women. When assessing the outcome of pharmacological and non-pharmacological therapies in pain treatment, the factors of gender and sex should be taken into account as the response to an intervention may differ. Preferably, treatment recommendations should be based on studies using both women and men as the norm. Due to variability in results, findings from animal studies and experiments in healthy subjects should be interpreted with care.
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Affiliation(s)
- Iréne Lund
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
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19
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Abstract
The purpose of this work was to assess the evidence for effectiveness of acupuncture (AC) treatment in gastrointestinal diseases. A systematic review of the Medline-cited literature for clinical trials was performed up to May 2006. Controlled trials assessing acupuncture point stimulation for patients with gastrointestinal diseases were considered for inclusion. The search identified 18 relevant trials meeting the inclusion criteria. Two irritable bowel syndrome (IBS) trials, 1 Crohn's disease and 1 colitis ulcerosa trial had a robust random controlled trial (RCT) design. In regard to other gastrointestinal disorders, study quality was poor. In all trials, quality of life (QoL) improved significantly independently from the kind of acupuncture, real or sham. Real AC was significantly superior to sham acupuncture with regard to disease activity scores in the Crohn and Colitis trials. Efficacy of acupuncture related to QoL in IBS may be explained by unspecific effects. This is the same for QoL in inflammatory bowel diseases (IBD), whereas specific acupuncture effects may be found in clinical scores. Further trials for IBDs and in particular for all other gastrointestinal disorders would be necessary to evaluate the efficacy of acupuncture treatment. However, it must be discussed on what terms patients benefit when this harmless and obviously powerful therapy with regard to QoL is demystified by further placebo controlled trials.
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Affiliation(s)
- Antonius Schneider
- Department of General Practice and Health Services Research, University Medical Hospital Heidelberg, Vossstrasse 2, Heidelberg 69120, Germany.
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20
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Hammer J, Vogelsang H. Characterization of sensations induced by capsaicin in the upper gastrointestinal tract. Neurogastroenterol Motil 2007; 19:279-87. [PMID: 17391244 DOI: 10.1111/j.1365-2982.2007.00900.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Intraluminal capsaicin induces perception in the jejunum, but chemosensitivity of proximal gastrointestinal regions is unclear. Our aim was to evaluate the quality of perception induced by intraluminal capsaicin in different regions of the upper gastrointestinal tract. Healthy volunteers received either an oral tube for distension and capsaicin perfusion of the mid-duodenum or jejunum or swallowed a capsule containing 0.75 mg capsaicin powder. Graded questionnaires evaluated quality and severity of sensations during distensions, capsaicin infusion and 30 min after ingestion of capsaicin capsules respectively. Duodenal capsaicin induced sensations at lower doses than jejunal capsaicin (P < 0.05). Most prominent sensations evoked by capsaicin infusion were pressure, cramps, pain and nausea; nausea and warmth were more intense during capsaicin infusion than distension (P < 0.05,for the duodenum and jejunum), pain was more intense during distension (P < 0.05, duodenum only). Gastric ingestion of capsaicin capsules mainly induced sensations of pressure, heartburn and warmth. Capsaicin application into the upper gastrointestinal tract reproducibly induced upper abdominal sensation. Qualitative features distinguished chemically from mechanically induced sensations, but both sensitivity for chemical and mechanical stimulation decreased along the intestine. Activation of chemical pathways could be a useful human pain model activating nociceptors apart from mechanical stimulation.
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Affiliation(s)
- J Hammer
- Abteilung für Gastroenterologie und Hepatologie, Medical University of Vienna, Vienna, Austria.
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21
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Schneider A, Weiland C, Enck P, Joos S, Streitberger K, Maser-Gluth C, Zipfel S, Bagheri S, Herzog W, Friederich HC. Neuroendocrinological effects of acupuncture treatment in patients with irritable bowel syndrome. Complement Ther Med 2007; 15:255-63. [PMID: 18054727 DOI: 10.1016/j.ctim.2006.12.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2006] [Revised: 12/19/2006] [Accepted: 12/20/2006] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Quality of life (QoL) improvement in patients with irritable bowel syndrome (IBS) during acupuncture (AC) treatment seems to be due to a placebo effect. The aim was to explore if acupuncture has some specific influence on the neuroendocrinic and autonomic nervous system (ANS). DESIGN/SETTING Patients with IBS were randomly assigned to receive either acupuncture (AC) or sham acupuncture (SAC) using the so-called "Streitberger needle". QoL was measured with the functional quality of life diseases quality of life questionnaire (FDDQL) and SF-36. The effect on ANS was evaluated by measuring salivary cortisol and by cardiovascular responses on a tilt table before and after 10 AC treatments. Complete data sets of tilt table and salivary morning cortisol were available for 9 patients in the AC and 12 in SAC group. RESULTS QoL increased in both groups (p=0.001) with no group differences. Salivary cortisol decreased in all groups (F=10.55; p=0.006). However, the decrease was more pronounced in the AC group (F=4.07; p=0.033) (ANOVA repeated measures model). Heart rate response decreased during orthostatic stress in the AC group while it increased in the SAC group (F=9.234; p=0.005), indicating an increased parasympathetic tone in the AC group. Improvement of pain was positively associated with increased parasympathetic tone in the AC group (F=10.1; p=0.006), but not in the SAC group. CONCLUSIONS The acupuncture specific physiological effects are in contrast to the unspecific improvement of QoL in both AC and SAC groups. Thus, different mechanisms seem to be involved in placebo and real-acupuncture driven improvements. The specific mechanism of action of acupuncture on the ANS remains unclear and deserves further evaluation.
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Affiliation(s)
- A Schneider
- University Medical Hospital Heidelberg, Department of General Practice and Health Services Research, Vossstrasse 2, 69117 Heidelberg, Germany.
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22
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Abstract
The epidemiology and current understanding of the pathophysiology of irritable bowel syndrome is reviewed, beginning with a historical perspective. The roles of genetics, environment, allergy, infection and inflammation, bacterial overgrowth, hormones and motility abnormalities are discussed. Using the current evidence-based literature, the practical approach of diagnosis and treatment is outlined, including traditional modalities and newer therapeutic agents such as serotonin modulators.
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Affiliation(s)
- Mihaela Podovei
- GI Unit, Massachusetts General Hospital, Boston, MA 02114, USA
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23
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Streitberger K, Ezzo J, Schneider A. Acupuncture for nausea and vomiting: An update of clinical and experimental studies. Auton Neurosci 2006; 129:107-17. [PMID: 16950659 DOI: 10.1016/j.autneu.2006.07.015] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The objective of this overview is to summarize existing knowledge about the effects of acupuncture-point stimulation on nausea and vomiting. Systematic reviews on postoperative nausea and vomiting, chemotherapy-induced nausea and vomiting, and pregnancy-related nausea and vomiting exist. Several randomised trials, but no reviews, exist for motion sickness. For postoperative nausea and vomiting, results from 26 trials showed acupuncture-point stimulation was effective for both nausea and vomiting. For chemotherapy-induced nausea and vomiting, results of 11 trials differed according to modality with acupressure appearing effective for first-day nausea, electroacupuncture appearing effective for first-day vomiting, and noninvasive electrostimulation appearing no more effective than placebo for any outcome. For pregnancy-related nausea and vomiting, results were mixed. Experimental studies showed effects of P6-stimulation on gastric myoelectrical activity, vagal modulation and cerebellar vestibular activities in functional magnetic resonance imaging. There is good clinical evidence from more than 40 randomised controlled trials that acupuncture has some effect in preventing or attenuating nausea and vomiting. A growing number of experimental studies suggest mechanisms of action.
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Affiliation(s)
- Konrad Streitberger
- Department of Anaesthesiology, University of Heidelberg, Im Neuenheimer Feld 110, 69120 Heidelberg, Germany.
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Abstract
PURPOSE OF REVIEW Irritable bowel syndrome refers to abdominal discomfort associated with altered bowel habits. Recent evidence suggests that the primary pathophysiologic mechanism is brain-gut dysregulation. Many central and peripheral factors are involved. This article will review important pathophysiologic mechanisms with a focus on new and emerging therapies. RECENT FINDINGS Prior gastroenteritis and small intestinal bacterial overgrowth may be important for treatment of irritable bowel syndrome. Understanding of serotonergic receptors in gastrointestinal function has led to the development of serotonergic agents such as alosetron and tegaserod. Novel agents targeting other receptor sites include neurokinin and neurohormonal modulators, chloride channels and opioid receptors. Other therapeutic approaches - behavioral treatments, probiotics, antibiotics and alternative therapies - have developing roles in the treatment of irritable bowel syndrome. SUMMARY A better understanding of pathophysiologic mechanisms has resulted in therapeutic advances. Prokinetic therapies may have a role in nondiarrhea predominant irritable bowel syndrome. Antidepressants are used to modulate pain and treat comorbid psychological distress. Newer agents target various receptor sites. Advances in psychological/behavioral treatments and alternative modalities hold promise for the future.
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Tillisch K, Chang L. Diagnosis and treatment of irritable bowel syndrome: State of the art. Curr Gastroenterol Rep 2005; 7:249-56. [PMID: 16042907 DOI: 10.1007/s11894-005-0016-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder with a wide variety of presentations that may include abdominal pain, bloating, diarrhea, constipation, or alternating bowel habits. Symptom-based criteria and a limited medical evaluation are used for diagnosis. The heterogeneity of IBS presenting symptoms, together with the pathophysiology of the disorder, is unclear, making treatment challenging. Treatment strategies are focused on specific symptoms, potential underlying disorders in stress responsiveness, and predisposing psychological features. Although only two medications, tegaserod for constipation-predominant IBS and alosetron for diarrhea-predominant IBS, are specifically indicated, a wide variety of treatment options are available and are discussed in this review.
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Affiliation(s)
- Kirsten Tillisch
- VA Greater Los Angeles Healthcare System, CURE Building 115, Room 223, 11301 Wilshire Boulevard, Los Angeles, CA 90073, USA
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26
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Abstract
As a group, functional gastrointestinal disorders are the most common gastrointestinal disorder seen by both generalists and specialists. These disorders can be frustrating to both patients and physicians as they are usually chronic in nature and difficult to treat. These disorders are associated with frequent healthcare visits, the scheduling of multiple, expensive diagnostic tests, and the use of both over-the-counter and prescription medications. All of these factors lead to a significant economic burden to society. In addition, functional gastrointestinal disorders are associated with a reduction in quality of life for the patient. Irritable bowel syndrome (IBS) is the most common of the functional gastrointestinal disorders. This syndrome has been the focus of a large number of research studies over the past two decades. These studies have resulted in a number of significant changes in our definition of IBS. In addition, these research studies have produced considerable changes in our understanding of the etiology and pathogenesis of IBS. In this section, we will review some of the evolutionary changes that have occurred in IBS. We will discuss how the definition of IBS has changed, consider our evolving strategies to evaluate and diagnose IBS, and finally, provide a brief overview of treatment options for this common disorder.
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Affiliation(s)
- Brian E Lacy
- Division of Gastroenterology and Hepatology, Dartmouth-Hitchcock Medical Center, Lebanon, NH 03756, USA.
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27
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Samuels N. Integration of hypnosis with acupuncture: possible benefits and case examples. AMERICAN JOURNAL OF CLINICAL HYPNOSIS 2005; 47:243-8. [PMID: 15915851 DOI: 10.1080/00029157.2005.10403638] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Acupuncture treatment uses ultrafine needles which are inserted into specified points on the skin (acupoints). Acupuncture can help alleviate pain and inflammation, possibly through the increased release of pituitary beta-endorphins and ACTH. Hypnosis can also help alleviate pain syndromes, and may have centrally mediated immunomodulatory effects. The use of these 2 treatments simultaneously may potentially assist and augment the effects of each another. Two case reports where both treatments are used together are presented: One showing how hypnosis can help in the treatment of painful acupoints, the other how the response to acupuncture may be augmented by hypnosis in the treatment of headache. Controlled trials of this combined treatment are warranted.
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Affiliation(s)
- Noah Samuels
- Center for Integrative Complementary Medicine, Shaare Zedek Medical Center, Jerusalem, Israel.
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