Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 2.641
Filtrar
1.
Med Sci Monit ; 30: e945377, 2024 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-39192566

RESUMO

BACKGROUND Gastric bezoars are a relatively rare condition. We aim to summarize the clinical characteristics and endoscopic features of patients with gastric bezoars, and analyze the treatment process. MATERIAL AND METHODS The medical records of 44 patients with gastric bezoars treated at Henan Provincial People's Hospital from September 2017 to December 2023 were retrospectively reviewed. RESULTS Among the 44 patients, there were 20 males and 24 females. The average age was 55.36±15.17 years. Abdominal pain was the primary symptom in patients with gastric bezoars. Single gastric bezoars were more common than multiple ones, accounting for 86.4% of all cases. Endoscopic examination revealed ulcers in 36 (81.8%) patients, mainly at the gastric angle and antrum. Single ulcers were more common than multiple ulcers, with most ulcer diameters being less than 2 cm. The occurrence of ulcers was not significantly related to patient age or the size of the bezoars. Endoscopic examination confirmed complete clearance of gastric bezoars in 30 patients. In the 26 patients treated successfully under endoscopy, the number of endoscopic treatments ranged from 1 to 4, with an average of 1.27 interventions per patient. The interval for the second endoscopic re-examination ranged from 2 to 6 days, with an average of 3.87±1.22 days. CONCLUSIONS The most common type of gastric bezoar is phytobezoars. There is a close association between ulcer formation and gastric bezoars. Endoscopic therapy combined with oral treatment can effectively treat gastric bezoars. Most patients require only 1 endoscopic treatment to be successful. The appropriate interval for a follow-up endoscopy after the first endoscopic treatment is around 4 days.


Assuntos
Bezoares , Estômago , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto , Estômago/patologia , Idoso , Dor Abdominal , China
3.
BMC Infect Dis ; 24(1): 694, 2024 Jul 12.
Artigo em Inglês | MEDLINE | ID: mdl-38997621

RESUMO

Sarcina ventriculi is a bacterium with a specific histological morphology and infection can present with symptoms such as abdominal pain, nausea, vomiting and occasionally fatal complications. Delayed gastric emptying is regarded as the most significant risk factor for infection. Its pathogenicity is currently unknown and treatment options are inconsistent. Here we report a case of gastric bezoars secondary to a mixed infection of Sarcina ventriculi and G + bacilli, which is diagnosed by a pathological biopsy.


Assuntos
Bezoares , Sarcina , Humanos , Sarcina/isolamento & purificação , Coinfecção/microbiologia , Masculino , Estômago/microbiologia , Estômago/patologia , Feminino , Pessoa de Meia-Idade
4.
Paediatr Int Child Health ; 44(2): 73-78, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39066724

RESUMO

Trichobezoars are conglomerates of hair within the gastro-intestinal tract, commonly detected in the stomach, and they can present with the Rapunzel syndrome. Isolated small-bowel trichobezoars are extremely rare. Three female patients presented with abdominal pain and bilious vomiting, and underwent various imaging examinations. Two were diagnosed with small-bowel trichobezoars with intestinal obstruction and one with intestinal obstruction only. All three underwent surgery. Two underwent laparoscopic exploration and one underwent a laparotomy. One and two patients had isolated small-bowel trichobezoars in the ileum and jejunum, respectively. Two patients were followed up by a psychiatrist, and all recovered well without recurrence. These three cases emphasise the importance of a comprehensive medical history and imaging in patients with small-bowel obstruction to determine the possibility of bezoars.


Assuntos
Bezoares , Obstrução Intestinal , Humanos , Obstrução Intestinal/etiologia , Obstrução Intestinal/cirurgia , Feminino , Bezoares/complicações , Bezoares/cirurgia , Bezoares/diagnóstico por imagem , Criança , Intestino Delgado/patologia , Intestino Delgado/diagnóstico por imagem , Adolescente , Laparoscopia , Laparotomia
6.
Rev. méd. hondur ; 92(1): 40-44, ene.-jun. 2024. ilus
Artigo em Espanhol | LILACS, BIMENA | ID: biblio-1563156

RESUMO

Introducción: Tricobezoar es una masa formada principalmente por cabello humano, entre otras fibras o materiales que afecta el sistema gastrointestinal en pacientes con antecedente de tricotilomanía y tricofagia; las manifestaciones son inespecíficas, incluye saciedad, anorexia, vómitos, dolor abdominal, siendo una de las complicaciones el síndrome de Rapunzel que se caracteriza por la presencia de un tricobezoar localizado en el estómago con cola que se extiende más allá del píloro y es causa de obstrucción intestinal. Descripción del caso: Femenina de 10 años con antecedente de tricotilomanía y tricofagia no diagnosticada, además, historia de dolor abdominal crónico recurrente, pérdida progresiva del apetito y pérdida de peso. Al ingreso presenta vómitos post ingesta y distensión abdominal. Examen físico: signos vitales sin alteraciones, muy bajo peso para la edad, presencia de alopecia a nivel frontotemporal derecha, abdomen con masa en epigastrio. Estudios laboratoriales sin alteraciones. Endoscopia y serie esófago gastroduodenal reportan presencia de bezoar en estómago. Laparotomía describe tricobezoar que abarcaba toda la cámara gástrica y se extendía hasta el duodeno causando obstrucción, por lo que se confirma diagnóstico de síndrome de Rapunzel. El manejo incluyó apoyo nutricional y psiquiátrico por tricotilomanía y tricofagia secundario a trastorno de ansiedad generalizado. Conclusión: Las características clínicas de este caso se corresponden con lo descrito en la literatura por otros autores, el tricobezoar debe considerarse como diagnóstico diferencial en mujeres adolescentes con antecedente o sospecha de tricotilomanía y/o tricofagia que presentan dolor abdominal...(AU)


Assuntos
Humanos , Feminino , Criança , Tricotilomania , Bezoares , Alopecia
8.
Pediatr Surg Int ; 40(1): 121, 2024 May 04.
Artigo em Inglês | MEDLINE | ID: mdl-38703237

RESUMO

PURPOSE: Rapunzel syndrome is an uncommon condition in children, and its clinical features remain unclear. This study presents the largest single-center series of pediatric cases to date, with the objective of documenting the clinical characteristics and treatment approaches for children with Rapunzel syndrome. METHODS: A retrospective study was conducted in children with Rapunzel syndrome from 2019 to 2023. We recorded age, gender, symptoms, locations of bezoar, complications, and treatment options. RESULTS: Ten patients with Rapunzel syndrome were included. The median age was 9.1 years, with all of whom were female. The most common clinical symptoms were upper abdominal mass (90%), abdominal pain (80%), and nausea and vomiting (50%). Complications occurred in six cases (60%), including small bowel obstruction (20%), severe gastric dilatation (10%), intestinal perforation (10%), choledochodilation (10%), acute pancreatitis with cholecystitis (10%). Preoperative ultrasonography suggested low-echoic foreign bodies continuing to the jejunum or ileocecal region in five cases (50%). Preoperative gastroscopy attempted in four cases (40%) to remove the foreign bodies, all of which failed. All patients underwent surgical treatment, with nine cases undergoing gastric incision foreign body removal, and one case undergoing gastric incision foreign body removal combined with intestinal perforation repair. All patients recovered well. No recurrence was observed during follow-up. CONCLUSION: The accuracy of ultrasound diagnosis in identifying Rapunzel syndrome is high; however, it may lead to misdiagnosis if not complemented with the patient's medical history. Endoscopic presents a heightened treatment risk and a reduced success rate. The condition commonly presents with severe complications, thus making laparotomy a safe and effective option for intervention.


Assuntos
Bezoares , Centros de Atenção Terciária , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Bezoares/cirurgia , Bezoares/complicações , Bezoares/diagnóstico , Bezoares/diagnóstico por imagem , Estudos Retrospectivos , Estômago/cirurgia , Estômago/diagnóstico por imagem , Síndrome
9.
Prague Med Rep ; 125(2): 146-150, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38761047

RESUMO

We present a case of obstruction in the third portion of the duodenum secondary to a phytobezoar in an adult patient with no surgical history and without a vegan diet. High intestinal obstruction due to a phytobezoar is rarely described in the literature, posing a diagnostic challenge when evaluating potential differentials in the emergency setting. Subsequently, we conduct a review focusing on tomographic findings and the surgical specimen, highlighting key points to consider when addressing such pathologies.


Assuntos
Bezoares , Humanos , Masculino , Pessoa de Meia-Idade , Bezoares/cirurgia , Bezoares/diagnóstico , Obstrução Duodenal/etiologia , Obstrução Duodenal/diagnóstico , Obstrução Duodenal/cirurgia , Duodeno , Tomografia Computadorizada por Raios X
10.
Surg Endosc ; 38(5): 2788-2794, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38587640

RESUMO

AIM: To analyze efficacy of endoscopic lithotripsy combined with drug lithotripsy as compared with drug lithotripsy for the treatment of phytobezoars. METHODS: We collected and evaluated case records of 165 patients with phytobezoars from 2014 to 2023. And we analyzed demographic and clinical characteristics, imaging features, endoscopic features, complications of phytobezoars, and compared efficacy between endoscopic lithotripsy combined with drug lithotripsy (Group A) and drug lithotripsy (sodium bicarbonate combined with proton pump inhibitor) (Group B). RESULTS: The median age of patients with phytobezoars was 67.84 ± 4.286 years old. Abdominal pain was the most common symptom and peptic ulcers (67.5%) were the most common complication. Bezoar-induced ulcers were more frequent in the gastric angle. The success rate of phytobezoars vanishing in Group A and Group B were similar (92.3% vs. 85.1% within 48 h, 98.7% vs. 97.7% within a week), while the average hospitalization period, average hospitalization cost, second endoscopy rate, and average endoscopic operation time were significantly lower in patients in Group B than in Group A. CONCLUSION: Drug lithotripsy is the preferred effective and safe treatment option for phytobezoars. We advise that an endoscopy should be completed after 48 h for drug lithotripsy.


Assuntos
Bezoares , Litotripsia , Humanos , Bezoares/terapia , Masculino , Feminino , Litotripsia/métodos , Idoso , Pessoa de Meia-Idade , Estudos Retrospectivos , Inibidores da Bomba de Prótons/uso terapêutico , Inibidores da Bomba de Prótons/administração & dosagem , Resultado do Tratamento , Bicarbonato de Sódio/administração & dosagem , Bicarbonato de Sódio/uso terapêutico , Terapia Combinada , Dor Abdominal/etiologia , Dor Abdominal/terapia
12.
Rev. colomb. cir ; 39(3): 479-484, 2024-04-24. fig
Artigo em Espanhol | LILACS | ID: biblio-1554167

RESUMO

Introducción. El síndrome de Rapunzel es una entidad infrecuente, que se presenta como un tricobezoar a causa de una aglomeración de cabello acumulado dentro del tracto gastrointestinal, por lo que simula otras patologías quirúrgicas. Caso clínico. Paciente femenina de 10 años de edad, con tricotilomanía y tricofagia, dolor abdominal y síntomas inespecíficos de obstrucción intestinal de ocho meses de evolución. Al examen físico se encontró abdomen con distensión y masa palpable en epigastrio y mesogastrio. La ecografía permitió hacer el diagnóstico de tricobezoar gástrico extendido hasta el intestino delgado, por lo que se llevó a cirugía para gastrotomía y se extrajo el tricobezoar, con evolución satisfactoria de la paciente. El abordaje integral permitió conocer la atadura sicológica por posible maltrato infantil. Resultado. La paciente tuvo una evolución satisfactoria y se dio egreso al quinto día de hospitalización. Actualmente se encuentra en seguimiento por sicología, siquiatría infantil y pediatría. Discusión. El caso clínico denota la importancia en reconocer situaciones de presentación infrecuente en pediatría, que puedan estar asociadas a alteraciones sicológicas o presunción de maltrato infantil y que se presenten como una condición orgánica recurrente que simule otras patologías abdominales frecuentes en la infancia. El retraso diagnóstico puede conducir a un desenlace no deseado con complicaciones. Conclusión. Se hace mandatorio el manejo integral del paciente pediátrico y aumentar la sensibilidad para reconocer situaciones de presunción de maltrato infantil, sobre todo en pacientes con una condición orgánica quirúrgica recurrente.


Introduction. Rapunzel syndrome is an uncommon condition that manifests as trichobezoars, which are hair bundles in the stomach or small intestine that can mimics other surgical illnesses. Multiple complications can arise from delayed diagnosis and treatment. Clinical case. A 10-year-old female patient with trichotillomania and trichophagia, with abdominal pain and nonspecific symptoms of intestinal obstruction of eight months of evolution. Physical examination revealed epigastric tenderness and a solid mass was palpable in the mesogastric and epigastric region. An abdominal ultrasound showed gastric trichobezoar that extended into the small intestine. A gastrotomy was performed and the trichobezoar was extracted with satisfactory evolution of the patient. The comprehensive approach allowed knowing the psychological bond due to possible child abuse. Results. The patient had a satisfactory evolution and was discharged on the fifth day of hospitalization. He is currently being monitored by psychology, child psychiatry and pediatrics. Discussion. This clinical case highlights the importance of recognizing situations that seldom present in pediatrics, which may have a psychological aspect due to the presumption of child abuse, and which present as a recurrent organic condition simulating other frequent abdominal pathologies in childhood; all of which may lead to an unwanted outcome due to diagnostic delay. Conclusion. The comprehensive management of the pediatric patient is mandatory to recognize situations of presumed child abuse, in the face of a recurrent surgical conditions.


Assuntos
Humanos , Tricotilomania , Bezoares , Obstrução Duodenal , Estômago , Psiquiatria Infantil , Diagnóstico Diferencial
13.
Vet Radiol Ultrasound ; 65(3): 264-274, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38436052

RESUMO

Small intestinal obstruction in rabbits, although demonstrated to be common, is still poorly characterized. The objective of this study was to report features of small intestinal obstruction caused by trichobezoars in rabbits upon CT and their clinical outcomes. Rabbits with a diagnosis of intestinal obstruction that underwent CT scanning were included in this study. From each CT scan, obstruction location, appearance, Hounsfield units, size (mm), volume (mm3), distance from the stomach, and diameter of the small intestine proximal and distal to it, were extracted. Nine rabbits were included in the study. All rabbits presented for anorexia and had a distended or enlarged stomach (7) or abdomen (2). CT scan showed a non-contrast-enhancing, ovoid, smoothly marginated structure with a hyperattenuating rim, heterogeneous center, and variable amount of centrally located gas, in the duodenum (5), the jejunum (2), or the ileum (2). The density of the trichobezoars ranged from -156 to 58 HU (median, -44 HU) and volume ranged from 86.1 to 633.8 mm3 (median, 320.6 mm3). Three rabbits underwent medical management. Two of them survived, and one of them died. Six rabbits underwent surgery, of which three were successfully discharged from the hospital. CT proved to be a valuable imaging modality in rabbits with a suspected intestinal obstruction to provide the exact location of the obstruction and the characteristics of the obstructive material. The location and size of the trichobezoar may have relevant clinical implications.


Assuntos
Bezoares , Obstrução Intestinal , Intestino Delgado , Tomografia Computadorizada por Raios X , Animais , Coelhos , Obstrução Intestinal/veterinária , Obstrução Intestinal/diagnóstico por imagem , Obstrução Intestinal/etiologia , Obstrução Intestinal/cirurgia , Bezoares/veterinária , Bezoares/diagnóstico por imagem , Bezoares/complicações , Tomografia Computadorizada por Raios X/veterinária , Feminino , Intestino Delgado/diagnóstico por imagem , Masculino
14.
Afr J Paediatr Surg ; 21(2): 101-106, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38546247

RESUMO

BACKGROUND: Bezoars are indigestible lumps which are usually found in stomach. Types of bezoar include phytobezoar, trichobezoar, lithobezoar, pharmacobezoar, plasticobezoar, lactobezoar and metal bezoar. Trichobezoars mostly affect females in 20s and 30s with a rarity in paediatrics. Unexplained complaints with a palpable mass are commonly found in these patients. Treatment involves retrieval of mass with searching for others. The purpose of this study was to present data and surgical management of cases with trichobezoars. MATERIALS AND METHODS: We documented a retrospective review of trichobezoars done in our hospital between 2016 and 2022. All demographic data collected included gender and age of cases, composition and extent of bezoar, clinical presentation, imaging modalities, endoscopic trial, surgical approach and outcome. RESULTS: Five cases of gastrointestinal tract (GIT) trichobezoars underwent surgery. All cases were females between (13 and 16 years). Trichobezoars were three gastric, one ileal and one of combined gastric and colonic. Complaints were abdominal pain, vomiting, weight loss and halitosis. Three cases had a palpable abdominal mass. Different radiological modalities were performed. Endoscopic retrieval was tried in one patient and the laparoscopic approach in another one, but the first route failed. Laparotomy followed by gastrotomy, enterotomy and colotomy was done without complications. CONCLUSIONS: Trichobezoars should be suspected in any child with unexplained abdominal complaints or with a palpable abdominal mass, especially in girls. Imaging can be done in different modalities for diagnosis. Endoscopic retrieval could be tried; however, its failure is common, necessitating laparotomy, which has an excellent outcome.


Assuntos
Bezoares , Feminino , Humanos , Dor Abdominal/diagnóstico , Dor Abdominal/etiologia , Dor Abdominal/cirurgia , Bezoares/diagnóstico por imagem , Bezoares/cirurgia , Íleo , Estômago/cirurgia , Vômito , Adolescente
15.
Pol Merkur Lekarski ; 52(1): 128-131, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38518244

RESUMO

A 19-year-old female involved in a traffic accident presented to the Emergency Room (ER) with no trauma-related symptoms but a palpable mass in the epigastrium. Imaging revealed a massive trichobezoar causing gastric perforation. Urgent laparotomy was performed, and a 1.5-kilogram bezoar was removed, along with repairing coexisting gastric ulcers. The patient had a history of trichophagia, suggesting a psychiatric association. This case highlights the potential of trichobezoars to cause gastric perforation, even in patients admitted for unrelated reasons. CT-scan proves effective in diagnosing such cases. While a traffic accident might be a plausible cause, the presence of a bezoar can elevate the risk of complications. Psychiatric evaluation is recommended when trichophagia is identified. The study underscores the need for vigilance in unexpected scenarios, demonstrating the importance of multidisciplinary approaches in managing such cases.


Assuntos
Bezoares , Feminino , Humanos , Adulto Jovem , Acidentes de Trânsito , Bezoares/complicações , Bezoares/diagnóstico por imagem , Bezoares/cirurgia , Laparotomia/métodos , Tomografia Computadorizada por Raios X
16.
BMJ Case Rep ; 17(2)2024 Feb 06.
Artigo em Inglês | MEDLINE | ID: mdl-38320958

RESUMO

A man in his 60s with a virgin abdomen presented with sudden-onset generalised abdominal pain and fevers. The night prior, he snacked on supermarket purchased dehydrated apples. CT abdomen and pelvis revealed small bowel obstruction (SBO) to the mid ileum and small amount of free fluid within the pelvis. The patient underwent emergency exploratory laparotomy. High-grade SBO was identified, caused by large obstructing phytobezoars, with three further proximal large phytobezoars identified. All four phytobezoars were extracted and found to be rehydrated pieces of dehydrated apple that had increased in size in the gastrointestinal tract. The patient was later found to have further phytobezoars in the stomach which passed conservatively. The patient recovered well. This case demonstrates the challenges of preoperative radiological diagnosis in phytobezoar-related SBO and the significance of enterotomy orientation and closure to ensure a safe repair to withstand the passage of any residual rehydrating phytobezoars.


Assuntos
Bezoares , Obstrução Intestinal , Malus , Masculino , Humanos , Intestino Delgado/cirurgia , Obstrução Intestinal/etiologia , Bezoares/cirurgia , Ingestão de Alimentos
17.
BMC Pediatr ; 24(1): 124, 2024 Feb 16.
Artigo em Inglês | MEDLINE | ID: mdl-38365624

RESUMO

BACKGROUND: Trichobezoar is an extremely rare condition characterized by a foreign body in the gastrointestinal tract (GIT) among children. The foreign body may exist in the digestive tract for several years, and it becomes evident if complications develop. The current study aimed to present 21 cases of GIT trichobezoars. METHODS: Retrospective analysis of children who were diagnosed with trichobezoars between August 2012 and December 2022. Patient demographics, clinical presentation, diagnosis, and therapy were collected and analyzed.Twenty-one patients had GIT trichobezoars. Data were collected and analyzed retrospectively. RESULTS: Twenty-one patients were identified. All patients were female. Their mean age at admission was 8.9 ± 1.9 years. Furthermore, 19 (90.5%) patients presented with abdominal pain, 16 (76.2%) with vomiting, and 13 (61.9%) with a palpable mass. Sixteen patients underwent gastroduodenoscopy. Among them, 15 had gastric trichobezoars. Moreover, 12 patients underwent computed tomography scan. Eight patients presented with gastric and small intestinal BZs, one presented with increased small intestinal contents with dilation, and one presented with abundant gastric contents. Then, 20 patients underwent surgery. Among them, five underwent laparoscopic-assisted minilaparotomy (LAML), and the rest underwent laparotomy. The results showed that 10 (50%) patients had gastric trichobezoars; 7 (35%), Rapunzel syndrome; and 3 (15%), small bowel trichobezoars. Two patients developed superficial wound infection postoperatively. One patient had a recurrent gastric trichobezoar. CONCLUSION: Trichobezoar should be considered in young girls with a history of hair eating or those with hair in the vomit or feces. Timely diagnosis and aggressive treatment are the keys to reducing complications and improving prognosis. Laparoscopic-assisted minilaparotomy is a safe, feasible, and effective surgical method for treating trichobezoars.


Assuntos
Bezoares , Humanos , Feminino , Criança , Masculino , Bezoares/diagnóstico por imagem , Bezoares/cirurgia , Estudos Retrospectivos , Estômago/cirurgia , Intestino Delgado , Gastroscopia
19.
BMJ Case Rep ; 17(1)2024 Jan 12.
Artigo em Inglês | MEDLINE | ID: mdl-38216163

RESUMO

Fungal bezoars (fungal balls) are rarely reported in the upper or lower urinary tract. They can be the cause of severe morbidities such as urinary tract obstruction, renal failure and fungaemia. Hereby, we present a rare case of a male patient who underwent transurethral resection of bladder tumour (TURBT), and during his postoperative period, he was diagnosed with bladder fungal bezoars adherent to his resection area. The fungal bezoars were covering an extended area of the right lateral bladder wall, including the right ureteric orifice and causing right urinary tract obstruction. Those findings were manifested only after a relooked cystoscopy and histological evaluation.We aim to present a rare example of fungal bezoars mimicking other pathologies in the urinary tract and review the current literature for similar documentation. We underline the necessity of follow-up examinations for urologists performing TURBT surgeries, including urinalysis, imaging modalities and cystoscopy.


Assuntos
Bezoares , Carcinoma de Células de Transição , Neoplasias da Bexiga Urinária , Humanos , Masculino , Neoplasias da Bexiga Urinária/complicações , Neoplasias da Bexiga Urinária/diagnóstico , Neoplasias da Bexiga Urinária/cirurgia , Carcinoma de Células de Transição/complicações , Carcinoma de Células de Transição/diagnóstico , Carcinoma de Células de Transição/cirurgia , Bexiga Urinária/diagnóstico por imagem , Bexiga Urinária/cirurgia , Bexiga Urinária/patologia , Bezoares/patologia , Cicatriz/patologia
20.
Bol. latinoam. Caribe plantas med. aromát ; 23(1): 41-60, ene. 2024. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1552796

RESUMO

Hystrix brach yura bezoar is calcified undigested material found in the gastrointestinal tract known for various medicinal benefits including as an anticancer agent. However, the H. brachyura population has been declining due to its demand and is under Malaysian law pro tection. Therefore, present study aimed to identify bezoar anticancer active compounds through metabolomics and in - silico approaches. Five replicates of bezoar powder were subjected to extraction using different solvent ratios of methanol - water (100, 75, 5 0, 25, 0% v/v). Cytotoxicity and metabolite profiling using liquid chromatography - mass spectrometry were conducted. Putative compounds identified were subjected to in - silico analysis with targeted anticancer proteins namely, Bcl - 2, Cyclin B/CDK1 complex, V EGF and NM23 - H1. The correlation of LC - MS and cytotoxicity profile pinpointed two compounds, mangiferin and propafenone. In - silico study showed both compounds exerted good binding scores to all proteins with hydrophobic interaction dominating the ligand - pr otein complex binding, suggesting the ligands act as hydrophobes in the interactions.


El bezpar de Hystrix branchyura es material calcificado sin digerir encontr ados en el tracto gastrointestinal, conocido por sus variados beneficios médicos, incluyendo propiedades anticancerosas. De todas formas, la población de H. Branchyura ha ido declinando debido a su demanda y está bajo la protección de la ley de Malasia. Po r esto, este estudio busca identificar los componentes activos anticancerosos del bezoar mediante abordajes metabolómico e in silico. Cinco réplicas de polvo de bezoar fueron sometidos a extracción usando solventes con diferentes proporciones metanol - agua (100, 75, 50, 25, 0% v/v). Se hicieron perfiles de citotoxicidad y de metabolitos usando cromatografía líquida - espectrometría de masa ( LC - MS ). Se identificaron compuestos putativos yse sometieron a a nálisis in silico, buscando las proteínas anticancerosas B cl - 2, complejo Cyclin B/CDK1, VEGF, y NM23 - H1. La correlación LC - MS y el perfil de citotoxicidad identificaron dos compuestos: mangiferina y propafenona. El estudio in silico mostró que ambos compuestos tenían buenos índices de enlace con todas las proteín as con interacción hidrofóbica dominando el enlace complejo proteína - ligando, sugeriendo que los ligandos actúan como hidrófobos en las interacciones


Assuntos
Bezoares/metabolismo , Braquiúros/química , Antineoplásicos Fitogênicos/química , Análise Multivariada , Metabolômica , Simulação de Acoplamento Molecular , Compostos Fitoquímicos , Espectrometria de Massa com Cromatografia Líquida
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA