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1.
J Altern Complement Med ; 26(10): 956-965, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32614605

RESUMO

Objectives: Fufang Banmao (FFBM) capsule, a type of Chinese medicinal formulation, has decades of history in treating hepatocellular carcinoma (HCC). This retrospective study aimed to observe the effect of FFBM capsules on the 6-month survival of patients with advanced HCC and Vp3-4 portal vein tumor thrombosis (PVTT) who received supportive therapy alone. Design: In total, 320 HCC/Vp3-4 PVTT patients underwent treatment with supportive therapy, of whom 95 took FFBM capsules and were treated with supportive therapy (FFBM group) and 225 received supportive therapy alone (control group). Comparisons of the 6-month overall survival (OS) rate of the two groups were performed. Propensity score matching (PSM) was used to match the characteristics between individuals in the two groups. A nomogram was built based on independent predictive factors for OS. Results: Cox multivariate analysis revealed that hepatic encephalopathy, aspartate transaminase (AST) and γ-glutamyl transpeptidase levels, Child-Pugh class, prothrombin time, α-fetoprotein level, largest tumor diameter, and use of FFBM capsules were independent predictive factors of OS. Variceal bleeding, alanine transaminase, AST, total bilirubin, and Barcelona Clinic for Liver Cancer stage were different at baseline in the FFBM and control groups. Analysis revealed no significant adverse effects or toxicities relevant to the medications. After PSM (1:1), 95 patient pairs were analyzed as FFBM versus control. The OS probability was remarkably higher for patients in the FFBM group than in those in the control group at 6 months (p < 0.0001). The median survival time was 4 months in the FFBM group and 2.2 months in the control group. Kaplan-Meier analysis showed significant statistical differences in the 6-month OS rates in the patients with total nomogram scores ≥84 (p < 0.0001). Conclusions: Given the satisfying survival outcomes, the results suggested that FFBM capsules should be administered to patients with HCC/Vp3-4 PVTT in the high-risk group (score ≥84). FFBM capsules have the potential for improving patient survival time in those with advanced HCC and Vp3-4 PVTT who receive supportive therapy alone, especially those in the high-risk group (score ≥84).


Assuntos
Carcinoma Hepatocelular/tratamento farmacológico , Medicamentos de Ervas Chinesas/uso terapêutico , Hemorragia Gastrointestinal/tratamento farmacológico , Neoplasias Hepáticas/tratamento farmacológico , Fitoterapia/métodos , Trombose Venosa/tratamento farmacológico , Carcinoma Hepatocelular/patologia , Combinação de Medicamentos , Feminino , Hemorragia Gastrointestinal/patologia , Humanos , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Veia Porta/patologia , Estudos Retrospectivos , Resultado do Tratamento , Trombose Venosa/patologia
2.
Blood ; 136(10): 1125-1133, 2020 09 03.
Artigo em Inglês | MEDLINE | ID: mdl-32584960

RESUMO

Gastrointestinal (GI) bleeding is distinctive of severe von Willebrand disease (VWD), generally arising in older patients; in most cases, blood transfusion and hospitalization are required. The presence of arteriovenous malformations is often described when endoscopic examinations are performed. Patients with congenital type 3, 2A, and 2B are those most frequently affected by this symptom, possibly due to the loss of high-molecular-weight multimers of von Willebrand factor (VWF). GI bleeding can also occur in patients affected by acquired von Willebrand syndrome. Endoscopic examination of the GI tract is necessary to exclude ulcers and polyps or cancer as possible causes of GI bleeding. In congenital VWD, prophylaxis with VWF/factor VIII concentrates is generally started after GI-bleeding events, but this therapy is not always successful. Iron supplementation must be prescribed to avoid chronic iron deficiency. Possible rescue therapies (high-dose statins, octreotide, thalidomide, lenalidomide, and tamoxifen) were described in a few case reports and series; however, surgery may be necessary in emergency situations or if medical treatment fails to stop bleeding. In this article, we present several clinical cases that highlight the clinical challenges of these patients and possible strategies for their long-term management.


Assuntos
Transfusão de Sangue/métodos , Desamino Arginina Vasopressina/uso terapêutico , Fator VIII/uso terapêutico , Hemorragia Gastrointestinal/terapia , Doenças de von Willebrand/complicações , Fator de von Willebrand/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Combinação de Medicamentos , Feminino , Hemorragia Gastrointestinal/etiologia , Hemorragia Gastrointestinal/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Doenças de von Willebrand/classificação
3.
Sci Rep ; 9(1): 6793, 2019 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-31043657

RESUMO

Colonic diverticular bleeding (CDB) and acute colonic diverticulitis (ACD) show high recurrence rates. The establishment of optimal strategies that prevent the recurrence of CDB and ACD is a major concern among gastroenterologists. This study aimed to assess the efficacy of burdock tea for preventing CDB and ACD recurrences. Newly diagnosed patients with CDB (n = 91) or ACD (n = 70) were randomly assigned into two groups. The experimental group received 1.5 g of burdock tea three times a day, whereas the control group did not receive any treatment. The median (interquartile range) of observation for recurrence of CDB or ACD was 22.0 (14.1) months and 30.3 (18.6), respectively. The burdock tea treatment showed significant preventive effects on recurrence of ACD. A lower ACD recurrence rate (5/47 [10.6%] vs. 14/44 [31.8%]) and longer recurrence-free duration was observed in the burdock tea group (59.3 months [95% CI: 54.0-64.7] vs. 45.1 months [95% CI: 37.1-53.0] by the Kaplan-Meier analysis; p = 0.012 by log rank test) than in the control group, although there was no significant preventive effects on the CDB recurrence. This randomized clinical trial demonstrated that daily intake of burdock tea could be an effective strategy for prevention of ACD recurrence, but not for CDB recurrence.


Assuntos
Doenças Diverticulares/tratamento farmacológico , Doença Diverticular do Colo/tratamento farmacológico , Hemorragia Gastrointestinal/tratamento farmacológico , Chá , Adulto , Idoso , Idoso de 80 Anos ou mais , Doenças Diverticulares/patologia , Doença Diverticular do Colo/patologia , Feminino , Seguimentos , Hemorragia Gastrointestinal/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Recidiva , Taxa de Sobrevida , Adulto Jovem
4.
Medicine (Baltimore) ; 97(50): e13712, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30558089

RESUMO

RATIONALE: Currently, the mainstream treatment for gastric bezoars is endoscopic lithotripsy. This report describes traditional Chinese medicine (TCM) purgative cured a 62-year-old woman with a huge gastric bezoar accompanied by isolated esophageal venous aneurysms and multiple bleeding gastric ulcers. PATIENT CONCERNS: A 62-year-old woman with several symptoms, including epigastric pain, nausea, and vomiting, hiccups, heartburn, and dark, loose stools. The patient showed abdominal tenderness, positive Murphy sign, hyperactive bowel sounds, a pale tongue with scalloped edges, greasy moss, and pulse moisten. A complementary examination revealed the presence of occult blood in the vomit. DIAGNOSIS: The patient was diagnosed with isolated esophageal venous aneurysms, gastric bezoars, and multiple bleeding gastric ulcers. Gastroscopy revealed a 0.6 cm blue uplift, a smooth surface, and a regular and clearly defined dentate line. A large bezoar was observed in the stomach cavity with a dark red blood in the surface. The gastric angle showed multiple lesions, with their largest diameter being 2.5 cm, blood was oozing from these ulcers. INTERVENTIONS: The patient was prescribed a TCM purgative combined with omeprazole enteric-coated tablets. Three days after admission, the patient was diagnosed with isolated esophageal venous aneurysms, gastric bezoars, multiple bleeding gastric ulcers. A specific herbal formula was prescribed to eliminate the bezoar. In addition, conventional western medicine was used for the patient, such as pantoprazole sodium intravenous infusion to inhibit gastric acid and sodium bicarbonate solution orally to soften the gastric bezoar. OUTCOMES: After 5 days, the patient had complete relief from all remaining symptoms, including stomach pain and hiccups. Follow-up gastroscopy revealed that the venous aneurysm and gastric bezoar had disappeared, and the ulcer had reduced in size to approximately 0.6 to 0.8 cm. The patient was discharged after recovery and did not relapse for 3 years. LESSONS: TCM combined with conventional western medicine to treat huge gastric bezoars and its complications is effective and safe, and worth to be recommended as an alternative to endoscopic lithotripsy.


Assuntos
Bezoares/complicações , Hemorragia Gastrointestinal/tratamento farmacológico , Medicina Tradicional Chinesa/métodos , Úlcera Gástrica/tratamento farmacológico , Estômago/patologia , Feminino , Hemorragia Gastrointestinal/diagnóstico por imagem , Hemorragia Gastrointestinal/patologia , Gastroscopia/métodos , Humanos , Pessoa de Meia-Idade , Estômago/diagnóstico por imagem , Úlcera Gástrica/diagnóstico por imagem , Úlcera Gástrica/patologia , Resultado do Tratamento
6.
Hemodial Int ; 22(4): E60-E62, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29608808

RESUMO

Iron deficiency caused by gastrointestinal (GI) bleeding is a common cause of anemia in hemodialysis patient. Herein, we report the case of an 89-year-old hemodialysis patient who presented with acute anemia and melena. Endoscopy found gastritis and diverticulosis without active bleeding. A capsule endoscopy (CE) was then performed and revealed multiple vascular lesions that lead to the diagnosis of Blue Rubber Bleb Nevus syndrome (BRBNS). This rare disease is associated with multiple venous malformations in the skin and the GI tract, usually observed in children. The patient developed 4 months latter 2 skin lesions compatible with BRBNS. Treatment included blood transfusion and intravenous iron supplementation. We reported an unusual presentation of venous malformation BRBS which differs from angioectasia, in an adult hemodialysis patient. Overall prognosis is good.


Assuntos
Hemorragia Gastrointestinal/etiologia , Neoplasias Gastrointestinais/diagnóstico , Nevo Azul/diagnóstico , Diálise Renal/efeitos adversos , Neoplasias Cutâneas/diagnóstico , Idoso de 80 Anos ou mais , Hemorragia Gastrointestinal/patologia , Neoplasias Gastrointestinais/patologia , Humanos , Masculino , Nevo Azul/patologia , Prognóstico , Neoplasias Cutâneas/patologia
7.
Digestion ; 97(1): 52-58, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29393257

RESUMO

BACKGROUND: Obscure gastrointestinal bleeding (OGIB) is a common but embarrassing problem for gastroenterologists. Most bleeding lesions associated with OGIB are present in the small intestine and sometimes cannot be identified due to the difficulty associated with physical accessibility. Capsule endoscopy (CE) and double-balloon enteroscopy (DBE) have enabled in the process of diagnosing and have evolved to become approaches to treating OGIB. SUMMARY: CE is a minimally invasive procedure and has a high diagnostic yield in patients with OGIB. DBE offers additional advantage of biopsy collection for pathological diagnosis and therapeutic intervention, but it should be noted that it sometimes causes severe adverse events such as acute pancreatitis, intestinal bleeding, and intestinal perforation. CE should be performed early in the workup course of OGIB. Positive CE findings enhance the diagnostic yield of subsequent DBE, and the effective therapeutic intervention improves the clinical outcomes of OGIB patients. On the contrary, there are no clear guidelines for further investigation of patients with negative CE findings at the present. Although patients in stable general condition may only require follow-up, repeated CE is useful to detect positive findings in patients with evidence of sustained bleeding and progressing anemia. We have revealed that repeated CE has higher positive finding rate than DBE in OGIB patients with negative CE findings in a preliminary study. Key Messages: CE and DBE have complementary roles in the management of OGIB, and the precise timing and proper sequence may be important for the approach to treating OGIB.


Assuntos
Endoscopia por Cápsula/métodos , Enteroscopia de Duplo Balão/métodos , Hemorragia Gastrointestinal/diagnóstico por imagem , Enteropatias/diagnóstico por imagem , Intestino Delgado/diagnóstico por imagem , Anemia Ferropriva/etiologia , Biópsia , Endoscopia por Cápsula/efeitos adversos , Enteroscopia de Duplo Balão/efeitos adversos , Hemorragia Gastrointestinal/complicações , Hemorragia Gastrointestinal/patologia , Hemorragia Gastrointestinal/cirurgia , Humanos , Enteropatias/complicações , Enteropatias/patologia , Enteropatias/cirurgia , Intestino Delgado/patologia , Intestino Delgado/cirurgia , Sangue Oculto
8.
Toxicol Mech Methods ; 28(2): 130-139, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28849987

RESUMO

Nowadays, gastric ulcers have become very common gastrointestinal disorders and numerous natural plant extracts exert promising anti-ulcerative effects. Therefore, this study was designed to evaluate the possible protective effect of dietary starch against ethanol induced gastric ulcers in mice. Post-administration of dietary starch for three consecutive days caused remarkable ameliorations in hemorrhagic lesions in gastric mucus and significant suppression in % incidence of ulceration, ulcer index and ulcer score induced by ethanol single administration. Indeed, deep ulceration, necrosis, disruption and degeneration in large areas of mucosa layer together with dense inflammatory cells infiltration and edema in sub-mucosal layer induced by ethanol administration were attenuated by starch post-administration and normalized the tissue architecture of the stomach. This potential protective effect could be attributed to the potent anti-oxidative capacity of starch that causes scavenger of the reactive oxygen species and thereby decreasing single and double DNA stranded break inductions and apoptotic DNA damage revealed by returning the p53 and caspase-3 expression levels to the normal level compared to the ethanol treated group. In conclusion, dietary starch has a potent therapeutic effect against ethanol induced gastric ulcer in mice via its free radical scavengers ability. Thus, we recommended further studies on its possible use as antiulcer drugs.


Assuntos
Antiulcerosos/uso terapêutico , Apoptose/efeitos dos fármacos , Depressores do Sistema Nervoso Central/toxicidade , Dano ao DNA , Etanol/toxicidade , Amido/uso terapêutico , Úlcera Gástrica/induzido quimicamente , Úlcera Gástrica/prevenção & controle , Administração Oral , Animais , Antiulcerosos/administração & dosagem , Caspase 3/metabolismo , Ensaio Cometa , Hemorragia Gastrointestinal/induzido quimicamente , Hemorragia Gastrointestinal/patologia , Hemorragia Gastrointestinal/prevenção & controle , Camundongos , Estresse Oxidativo/efeitos dos fármacos , Amido/administração & dosagem , Úlcera Gástrica/patologia , Proteína Supressora de Tumor p53/metabolismo
9.
Gastroenterology ; 152(3): 497-514, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-28063287

RESUMO

BACKGROUND & AIMS: Video capsule endoscopy (CE) provides a noninvasive option to assess the small intestine, but its use with respect to endoscopic procedures and cross-sectional imaging varies widely. The aim of this consensus was to provide guidance on the appropriate use of CE in clinical practice. METHODS: A systematic literature search identified studies on the use of CE in patients with Crohn's disease, celiac disease, gastrointestinal bleeding, and anemia. The quality of evidence and strength of recommendations were rated using the Grading of Recommendation Assessment, Development, and Evaluation (GRADE) approach. RESULTS: The consensus includes 21 statements focused on the use of small-bowel CE and colon capsule endoscopy. CE was recommended for patients with suspected, known, or relapsed Crohn's disease when ileocolonoscopy and imaging studies were negative if it was imperative to know whether active Crohn's disease was present in the small bowel. It was not recommended in patients with chronic abdominal pain or diarrhea, in whom there was no evidence of abnormal biomarkers typically associated with Crohn's disease. CE was recommended to assess patients with celiac disease who have unexplained symptoms despite appropriate treatment, but not to make the diagnosis. In patients with overt gastrointestinal bleeding, and negative findings on esophagogastroduodenoscopy and colonoscopy, CE should be performed as soon as possible. CE was recommended only in selected patients with unexplained, mild, chronic iron-deficiency anemia. CE was suggested for surveillance in patients with polyposis syndromes or other small-bowel cancers, who required small-bowel studies. Colon capsule endoscopy should not be substituted routinely for colonoscopy. Patients should be made aware of the potential risks of CE including a failed procedure, capsule retention, or a missed lesion. Finally, standardized criteria for training and reporting in CE should be defined. CONCLUSIONS: CE generally should be considered a complementary test in patients with gastrointestinal bleeding, Crohn's disease, or celiac disease, who have had negative or inconclusive endoscopic or imaging studies.


Assuntos
Anemia Ferropriva/diagnóstico , Endoscopia por Cápsula/métodos , Doença Celíaca/diagnóstico , Doença de Crohn/diagnóstico , Hemorragia Gastrointestinal/diagnóstico , Intestino Delgado/patologia , Anemia Ferropriva/etiologia , Anemia Ferropriva/patologia , Doença Celíaca/patologia , Colonoscopia , Doença de Crohn/patologia , Endoscopia do Sistema Digestório , Hemorragia Gastrointestinal/complicações , Hemorragia Gastrointestinal/patologia , Humanos , Guias de Prática Clínica como Assunto
10.
J Vasc Interv Radiol ; 27(6): 824-30, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27056283

RESUMO

PURPOSE: To retrospectively evaluate the safety and risk of transcatheter arterial embolization (TAE) with N-butyl cyanoacrylate (NBCA) for urgent acute arterial bleeding control in the lower gastrointestinal tract by angiography and colonoscopy. MATERIALS AND METHODS: NBCA TAE was performed in 16 patients (mean age, 63.7 y) with lower gastrointestinal bleeding (diverticular hemorrhage, tumor bleeding, and intestinal tuberculosis). Angiographic evaluation was performed by counting the vasa recta filled with casts of NBCA and ethiodized oil (Lipiodol) after TAE. Patients were classified as follows: group Ia, with a single vas rectum with embolization of 1 branch (n = 6); group Ib, with a single vas rectum with embolization of ≥ 2 branches (n = 8); group II, with embolization of multiple vasa recta (n = 2). All patients underwent colonoscopy within 1 month, and ischemic complications (ulcer, scar, mucosal swelling, fibrinopurulent debris, and necrosis) were evaluated. RESULTS: The procedure was successful in all patients. No ischemic change was observed in any patients in group Ia and in two patients in group Ib. Ischemic changes were observed in six group Ib patients and both group II patients. Group Ib patients experienced ischemic complications that improved without treatment. One patient in group II underwent resection for intestinal perforation after embolization of three vasa recta. One patient in group II with sigmoid stricture with embolization of six vasa recta required prolonged hospitalization. CONCLUSIONS: NBCA embolization of ≥ 3 vasa recta can induce ischemic bowel damage requiring treatment. NBCA TAE of one vas rectum with ≥ 2 branches could also induce ischemic complications. However, these were silent and self-limited.


Assuntos
Angiografia Digital , Colonoscopia , Embolização Terapêutica/métodos , Embucrilato/administração & dosagem , Hemorragia Gastrointestinal/terapia , Enteropatias/terapia , Adulto , Idoso , Embolização Terapêutica/efeitos adversos , Embucrilato/efeitos adversos , Óleo Etiodado/administração & dosagem , Feminino , Hemorragia Gastrointestinal/diagnóstico por imagem , Hemorragia Gastrointestinal/patologia , Humanos , Enteropatias/diagnóstico por imagem , Enteropatias/patologia , Masculino , Isquemia Mesentérica/diagnóstico por imagem , Isquemia Mesentérica/etiologia , Isquemia Mesentérica/patologia , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
11.
Wien Klin Wochenschr ; 128(Suppl 8): 559-565, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25860852

RESUMO

BACKGROUND: Ankaferd blood stopper (ABS) is a herbal extract that enhances mucosal healing. It has therapeutic potential in the management of external hemorrhage and controlling gastrointestinal bleeding associated with various benign lesions refractory to conventional antihemorrhagic measures. The aim of this experimental study was to assess the effects of ABS on hemorrhagic lesions and compare them with omeprazole. METHODS: The study was conducted on 30 rats. Rats were divided into five groups: group A (only indomethacin), group B (ABS administration 60 min before indomethacin-induced injury), group C (ABS administration 30 min after indomethacin-induced injury), group D (omeprazole administration 60 min before indomethacin-induced injury), group E (omeprazole administration 30 min after indomethacin-induced injury). Gastric mucosal lesions were produced by indomethacin in all three groups. The effect was studied morphologically 6 h after oral administration of the drug. Subsequently, affected tissue was examined histologically. RESULTS: Based on the number and the total size of hemorrhagic lesions, the hemorrhagic lesion scores were significantly better in Group C compared to other groups (p < 0.05). The hemorrhagic lesion score of Group B was significantly better than Group D and Group A (p < 0.05). Omeprazole groups (Group D, Group E) did not show significant improvement as indicated by macroscopic scores. There was no significant difference between the groups with respect to microscopic scores. CONCLUSION: These results indicate that ABS has a potent inhibitory action on indomethacin-induced gastric bleeding and mucosal lesions and it is useful in the treatment of acute gastric mucosal lesions.


Assuntos
Gastrite/tratamento farmacológico , Gastrite/patologia , Hemorragia Gastrointestinal/tratamento farmacológico , Hemorragia Gastrointestinal/patologia , Omeprazol/administração & dosagem , Extratos Vegetais/administração & dosagem , Animais , Antiulcerosos/administração & dosagem , Gastrite/complicações , Hemorragia Gastrointestinal/etiologia , Hemostáticos/administração & dosagem , Masculino , Distribuição Aleatória , Ratos , Ratos Wistar , Resultado do Tratamento
13.
Gastroenterol. hepatol. (Ed. impr.) ; 37(supl.3): 62-70, sept. 2014. tab, ilus
Artigo em Espanhol | IBECS | ID: ibc-138532

RESUMO

Los estudios presentados en el reciente congreso de la American Gastroenterological Association, en el campo de la hemorragia digestiva alta no varicosa asociada o no a la toma de antiinflamatorios no esteroideos o de ácido acetilsalicílico, no han sido numerosos pero sí interesantes. Las conclusiones fundamentales son: a) rabeprazol, el único inhibidor de la bomba de protones que tenía escasos estudios en este campo, es eficaz en la prevención de úlceras gastroduodenales; b) famotidina podría ser también eficaz en la prevención de complicaciones por ácido acetilsalicílico; c) los nuevos y potentes inhibidores de ácido competitivos de la bomba de potasio son eficaces (tanto como los inhibidores de la bomba de protones) en la recurrencia de úlceras pépticas por ácido acetilsalicílico; d) la endoscopia precoz (< 8 h) en la hemorragia digestiva alta no varicosa no parece ofrecer mejor resultado que la efectuada en las primeras 24 h; e) la terapia endoscópica en Forrest 1 a no consigue obliterar la arteria sangrante en el 30% de las ocasiones y es la causa de la recurrencia; f) las terapias alternativas con pegamento o productos coagulantes se van abriendo paso en la terapia endoscópica del sangrante; g) la administración liberal de sangre en el sangrante digestivo se asocia a peor pronóstico; h) las lesiones del intestino delgado son causa frecuente de hemorragia digestiva cuando la endoscopia alta no demuestra estigmas positivos, y i) el estudio con cápsula endoscópica tiene un rendimiento alto en la hemorragia digestiva de origen oscuro si se efectúa precozmente en los 2 primeros días tras el inicio del episodio


The studies presented at the recent American Congress of Gastroenterology in the field of non-variceal upper gastrointestinal bleeding (associated or not to NSAIDs or ASA use) have not been numerous but interesting. The key findings are: a) rabeprazole, the only PPI that had few studies in this field, is effective in the prevention of gastric ulcers; b) famotidine could also be effective in the prevention of complications by AAS; c) the new competitive inhibitors of the acid potassium pump are effective (as much as PPIs) on the recurrence of peptic ulcers by ASA; d) early endoscop (<8 h) in non-variceal upper gastrointestinal bleeding seems to offer no better results than those made in the first 24 h; e) endoscopic therapy in Forrest 1a ulcers does not obliterate the bleeding artery in 30% of cases and is the cause of bleeding recurrence; f) alternative therapies with glue or clotting products are being increasingly used in endoscopic therapy of gastrointestinal bleeding; g) liberal administration of blood in the GI bleeding is associated with poor prognosis; h) lesions of the small intestine are frequent cause of gastrointestinal bleeding when upper endoscopy shows no positive stigmata; and i) capsule endoscopy studies have high performance in gastrointestinal bleeding of obscure origin, if performed early in the first two days after the beginning of the bleeding episode


Assuntos
Feminino , Humanos , Masculino , Hemorragia Gastrointestinal/induzido quimicamente , Hemorragia Gastrointestinal/patologia , Esteroides/administração & dosagem , Esteroides/farmacologia , Anticoagulantes/síntese química , Anticoagulantes , Endoscopia Gastrointestinal/métodos , Intestino Delgado/irrigação sanguínea , Hemorragia Gastrointestinal/complicações , Hemorragia Gastrointestinal/metabolismo , Esteroides/metabolismo , Esteroides/uso terapêutico , Anticoagulantes/administração & dosagem , Anticoagulantes/sangue , Endoscopia Gastrointestinal/enfermagem , Intestino Delgado/lesões
14.
Molecules ; 19(4): 3973-87, 2014 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-24699143

RESUMO

Laetia suaveolens, known as "casinga-cheirosa", crude extract EB719 has previously shown cytotoxic activity against prostate cancer and squamous cell carcinoma. For the first time, seven molecules were isolated from its apolar-α-tocopherol (1) and sitosterol (2)-and polar-3-O-caffeoylquinic acid (3), 4-O-caffeoylquinic acid (4), 5-O-feruloylquinic acid (5), hyperoside (6), and isoquercitrin (7)-fractions. Acute toxicity was determined in a two-stage experiment: (1) a reduced number of Balb-c male mice received 5000 mg/kg of EB719 to allow evaluation of general activity and other 27 parameters, plus death, up to the establishment of non-lethal dose (NLD), as well as lethal dose 50% (LD50); (2) NLD was administered and diazepam introduced as reference drug. EB719 showed LD50=178.0 mg/kg, and NLD 156.3 mg/kg. In stage one EB719 did not influence general activity, but provoked impairment in grasp reflexes, tail squeeze and breathing; piloerection and cyanosis were increased. In stage two, alterations occurred in auricular reflex, piloerection and breathing after diazepam administration, but not in response to EB719. Intestinal hemorrhage caused by local bleeding was observed after necropsy, and may be the main cause of animals' death other than a systemic effect of the extract. Although the isolated compounds are biologically and pharmacologically active in both men and animal systems, it is premature to relate their occurrence in EB719 to the observed intestine hemorrhage in mice.


Assuntos
Hemorragia Gastrointestinal/induzido quimicamente , Extratos Vegetais/toxicidade , Salicaceae/química , Animais , Peso Corporal , Diazepam/toxicidade , Hemorragia Gastrointestinal/patologia , Humanos , Dose Letal Mediana , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Tamanho do Órgão , Piloereção/efeitos dos fármacos , Extratos Vegetais/química , Quercetina/análogos & derivados , Quercetina/isolamento & purificação , Ácido Quínico/análogos & derivados , Ácido Quínico/isolamento & purificação , Respiração/efeitos dos fármacos , Sitosteroides/isolamento & purificação , alfa-Tocoferol/isolamento & purificação
15.
BMC Gastroenterol ; 13: 152, 2013 Oct 25.
Artigo em Inglês | MEDLINE | ID: mdl-24156777

RESUMO

BACKGROUND: Acute lower gastrointestinal hemorrhage originating from the appendix is rare and often intractable, because it is almost impossible to approach the bleeding point by endoscopy. We herein describe the first case of bleeding from the appendix, which was successively controlled by a therapeutic barium enema administered into the appendix. CASE PRESENTATION: A 71-year-old male visited our hospital because of melena. He has been receiving an anti-coagulation drug, ticlopidine hydrochloride, for 10 years. By an emergency colonoscopy, a hemorrhage was detected in the appendix, and the lesion responsible for the bleeding was regarded to exist in the appendix. Two hundred milliliters of 50 W/V% barium was sprayed into the orifice of the appendix using a spraying tube. The bleeding could thus be immediately stopped, and a radiological examination revealed the accumulation of barium at the cecum and the orifice of the appendix. The barium accumulation disappeared by the next day, and no obvious anal bleeding was observed. Two weeks after stopping the bleeding from the appendix, an appendectomy was performed to prevent any further refractory hemorrhaging. The patient has had no complaints of any abdominal symptoms or anal bleeding for 10 months. CONCLUSIONS: A therapeutic barium enema is a useful procedure to control bleeding from the appendix and to avoid emergency surgery, such as partial cecectomy and hemicolectomy.


Assuntos
Apêndice/cirurgia , Sulfato de Bário/uso terapêutico , Doenças do Ceco/terapia , Meios de Contraste/uso terapêutico , Enema , Hemorragia Gastrointestinal/terapia , Técnicas Hemostáticas , Idoso , Apendicectomia , Apêndice/diagnóstico por imagem , Apêndice/patologia , Doenças do Ceco/diagnóstico por imagem , Doenças do Ceco/patologia , Hemorragia Gastrointestinal/diagnóstico por imagem , Hemorragia Gastrointestinal/patologia , Humanos , Masculino , Radiografia , Resultado do Tratamento
16.
J Physiol Pharmacol ; 64(1): 65-75, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23568973

RESUMO

We examined the effect of egualen, a stable azulene derivative, against gastric damage induced by ischemia/reperfusion (I/R), gastric bleeding induced by double antiplatelet therapy with aspirin (ASA) plus clopidogrel, and small intestinal damage generated by loxoprofen, and investigated the possible mechanisms involved in its protective action. Male C57BL/6 mice or SD rats were used under urethane anesthesia (gastric lesions) or in a conscious (intestinal lesions) state. I/R-induced gastric injury was produced in mice by clamping the celiac artery for 30 min, followed by reperfusion for 60 min. Gastric bleeding was induced in rats by luminal perfusion with 25 mM ASA+50 mM HCl for 2 hours in the presence of clopidogrel (30 mg/kg). To produce small intestinal lesions the rats were given loxoprofen (60 mg/kg) p.o. and killed 24 hours later. Egualen was given i.d. 60 min before I/R or ASA perfusion, while given p.o. twice 30 min before and 6 hours after loxoprofen. Egualen significantly prevented the I/R-induced gastric damage, and the effect was equivalent to that of seratrodast (TXA2 antagonist). This agent also significantly suppressed gastric bleeding induced by ASA plus clopidogrel, similar to PGE2. Likewise, egualen significantly prevented loxoprofen-induced damage in the small intestine, accompanied by an increase in the secretion of mucus and suppression of bacterial invasion as well as iNOS expression. These results suggest that egualen has a prophylactic effect against various lesions in the gastrointestinal mucosa, probably through its characteristic pharmacological properties, such as TXA2 antagonistic action, local mucosal protection, and stimulation of mucus secretion.


Assuntos
Azulenos/farmacologia , Hemorragia Gastrointestinal/tratamento farmacológico , Trato Gastrointestinal/irrigação sanguínea , Fenilpropionatos/toxicidade , Traumatismo por Reperfusão/tratamento farmacológico , Sesquiterpenos/farmacologia , Animais , Aspirina/toxicidade , Benzoquinonas/toxicidade , Clopidogrel , Mucosa Gástrica/irrigação sanguínea , Mucosa Gástrica/efeitos dos fármacos , Mucosa Gástrica/metabolismo , Mucosa Gástrica/patologia , Hemorragia Gastrointestinal/induzido quimicamente , Hemorragia Gastrointestinal/metabolismo , Hemorragia Gastrointestinal/patologia , Trato Gastrointestinal/efeitos dos fármacos , Trato Gastrointestinal/patologia , Ácidos Heptanoicos/toxicidade , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Muco/metabolismo , Óxido Nítrico Sintase Tipo II/metabolismo , Úlcera Péptica/prevenção & controle , Peroxidase/metabolismo , Inibidores da Agregação Plaquetária/toxicidade , Ratos , Ratos Sprague-Dawley , Traumatismo por Reperfusão/patologia , Ticlopidina/análogos & derivados , Ticlopidina/toxicidade
17.
J Gastroenterol Hepatol ; 28(8): 1321-9, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23611708

RESUMO

BACKGROUND AND AIM: Corchorus olitorius is a medicinal plant traditionally utilized as an antifertility, anti-convulsive, and purgative agent. This study aimed to evaluate the gastroprotective effect of an ethanolic extract of C. olitorius against ethanol-induced gastric ulcers in adult Sprague Dawley rats. METHODS: The rats were divided into seven groups according to their pretreatment: an untreated control group, an ulcer control group, a reference control group (20 mg/kg omeprazole), and four experimental groups (50, 100, 200, or 400 mg/kg of extract). Carboxymethyl cellulose was the vehicle for the agents. Prior to the induction of gastric ulcers with absolute ethanol, the rats in each group were pretreated orally. An hour later, the rats were sacrificed, and gastric tissues were collected to evaluate the ulcers and to measure enzymatic activity. The tissues were subjected to histological and immunohistochemical evaluations. RESULTS: Compared with the extensive mucosal damage in the ulcer control group, gross evaluation revealed a marked protection of the gastric mucosa in the experimental groups, with significantly preserved gastric wall mucus. In these groups, superoxide dismutase and malondialdehyde levels were significantly increased (P < 0.05) and reduced (P < 0.05), respectively. In addition to the histologic analyses (HE and periodic acid-Schiff staining), immunohistochemistry confirmed the protection through the upregulation of Hsp70 and the downregulation of Bax proteins. The gastroprotection of the experimental groups was comparable to that of the reference control medicine omeprazole. CONCLUSIONS: Our study reports the gastroprotective property of an ethanolic extract of C. olitorius against ethanol-induced gastric mucosal hemorrhagic lesions in rats.


Assuntos
Corchorus , Etanol/efeitos adversos , Hemorragia Gastrointestinal/induzido quimicamente , Hemorragia Gastrointestinal/prevenção & controle , Fitoterapia , Extratos Vegetais/farmacologia , Animais , Antioxidantes , Mucosa Gástrica/metabolismo , Mucosa Gástrica/patologia , Hemorragia Gastrointestinal/metabolismo , Hemorragia Gastrointestinal/patologia , Proteínas de Choque Térmico HSP70/metabolismo , Peroxidação de Lipídeos/efeitos dos fármacos , Masculino , Malondialdeído/metabolismo , Fenóis , Ratos Sprague-Dawley , Superóxido Dismutase/metabolismo , Proteína X Associada a bcl-2/metabolismo
18.
J Altern Complement Med ; 18(1): 65-8, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22268970

RESUMO

AIM: This was a prospective study investigating the efficacy of Ankaferd Blood Stopper(®) (ABS), an herbal preparation, in patients with upper gastrointestinal (UGI) bleeding. MATERIALS AND METHODS: A total of 30 patients (22 male, 8 female) who had UGI bleeding (with differing causes) were included in the study. ABS was used to stop the bleeding. RESULTS: Primary hemostasis was achieved in 26 of the 30 cases. CONCLUSIONS: ABS is an effective and safe agent to use in patients with UGI bleeding.


Assuntos
Hemorragia Gastrointestinal/tratamento farmacológico , Hemostáticos/administração & dosagem , Úlcera Péptica/tratamento farmacológico , Fitoterapia , Extratos Vegetais/administração & dosagem , Administração Tópica , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Hemorragia Gastrointestinal/patologia , Gastroscopia , Humanos , Masculino , Pessoa de Meia-Idade , Úlcera Péptica/patologia , Estudos Prospectivos , Resultado do Tratamento , Adulto Jovem
19.
Rev Esp Enferm Dig ; 103(11): 576-81, 2011 Nov.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-22149559

RESUMO

BACKGROUND: chronic radiation proctopathy (CRP) is associated with recurrent rectal bleeding and transfusional requirements. Argon plasma coagulation (APC) and hyperbaric oxygen therapy (HOT) have been shown to be effective in the control of CRP. No prospective comparisons have been reported between these treatments. AIM: the aim was to evaluate the effectiveness, safety and impact on tissue toxicity of APC compared to HOT in patients with CRP. MATERIAL AND METHODS: a prospective study for evaluating treatment response was conducted. Patients with cervical cancer and CRP with rectal bleeding were recruited. They had not received previous treatment. Collected data included: demographics, previous radiation dosage, duration and severity of rectal bleeding. Hemoglobin, transfusional requirements, and tissue toxicity (SOMA LENT questionnaire) at baseline and at 1, 2, and 3 months follow up were recorded. RESULTS: thirty-one patients were included, 14 in the APC group and 17 in the HOT group. No response was noted in 13 and 18% of patients in the APC and HOT group respectively (p = NS). At the 1 and 2 months follow-up, the APC group showed a significantly better response in terms of transfusional requirements (0.6 vs. 3.4 and 0.7 vs. 2.5) and tissue toxicity score (5.3 vs. 8.6 and 3.8 vs. 7.248). After 3 months, both groups showed further improvement in all parameters without significant differences between them. CONCLUSIONS: APC and HOT were effective, safe and decreased the tissue toxicity scores in patients with CRP. However, response rate was higher and faster in the APC group.


Assuntos
Coagulação com Plasma de Argônio , Hemorragia Gastrointestinal/terapia , Oxigenoterapia Hiperbárica , Lesões por Radiação/terapia , Doenças Retais/terapia , Doença Crônica , Feminino , Hemorragia Gastrointestinal/etiologia , Hemorragia Gastrointestinal/patologia , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Lesões por Radiação/patologia , Doenças Retais/etiologia , Doenças Retais/patologia , Resultado do Tratamento , Neoplasias do Colo do Útero/complicações , Neoplasias do Colo do Útero/radioterapia
20.
J Pharmacol Exp Ther ; 338(3): 795-802, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21659471

RESUMO

Nonsteroidal anti-inflammatory drugs (NSAIDs) are commonly used analgesics, but can cause gastric and esophageal hemorrhages, erosion, and ulceration. The endogenous cannabinoid (endocannabinoid; eCB) system possesses several potential targets to reduce gastric inflammatory states, including cannabinoid receptor type 1 (CB(1)), cannabinoid receptor type 2 (CB(2)), and enzymes that regulate the eCB ligands 2-arachidonoylglycerol (2-AG) and N-arachidonoyl ethanolamine (anandamide; AEA). In the presented study, we tested whether 4-nitrophenyl 4-(dibenzo[d][1,3]dioxol-5-yl(hydroxy)methyl)piperidine-1-carboxylate (JZL184), a selective inhibitor of the primary catabolic enzyme of 2-AG, monoacylglycerol lipase (MAGL), would protect against NSAID-induced gastric damage. Food-deprived mice administered the nonselective cyclooxygenase inhibitor diclofenac sodium displayed gastric hemorrhages and increases in proinflammatory cytokines. JZL184, the proton pump inhibitor omeprazole (positive control), or the primary constituent of marijuana, Δ(9)-tetrahydrocannabinol (THC), significantly prevented diclofenac-induced gastric hemorrhages. JZL184 also increased stomach levels of 2-AG, but had no effect on AEA, arachidonic acid, or the prostaglandins E(2) and D(2). MAGL inhibition fully blocked diclofenac-induced increases in gastric levels of proinflammatory cytokines interleukin (IL)-1ß, IL-6, tumor necrosis factor α, and granulocyte colony-stimulating factor, as well as IL-10. Pharmacological inhibition or genetic deletion of CB(1) or CB(2) revealed that the gastroprotective effects of JZL184 and THC were mediated via CB(1). The antihemorrhagic effects of JZL184 persisted with repeated administration, indicating a lack of tolerance. These data indicate that increasing 2-AG protects against gastric damage induced by NSAIDs, and its primary catabolic enzyme MAGL offers a promising target for the development of analgesic therapeutics possessing gastroprotective properties.


Assuntos
Anti-Inflamatórios não Esteroides , Inibidores Enzimáticos/uso terapêutico , Hemorragia Gastrointestinal/induzido quimicamente , Hemorragia Gastrointestinal/prevenção & controle , Monoacilglicerol Lipases/antagonistas & inibidores , Amidoidrolases/antagonistas & inibidores , Animais , Benzodioxóis/farmacologia , Moduladores de Receptores de Canabinoides/metabolismo , Citocinas/metabolismo , Diclofenaco , Dronabinol/farmacologia , Ensaio de Imunoadsorção Enzimática , Privação de Alimentos , Mucosa Gástrica/metabolismo , Hemorragia Gastrointestinal/patologia , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Omeprazol/farmacologia , Piperidinas/farmacologia , Prostaglandinas/metabolismo , Piridinas/farmacologia , Receptor CB1 de Canabinoide/efeitos dos fármacos , Receptor CB2 de Canabinoide/efeitos dos fármacos , Estômago/efeitos dos fármacos , Estômago/patologia
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