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1.
J Transl Med ; 22(1): 449, 2024 May 13.
Artigo em Inglês | MEDLINE | ID: mdl-38741129

RESUMO

Inherited deficiency of thymidine phosphorylase (TP), encoded by TYMP, leads to a rare disease with multiple mitochondrial DNA (mtDNA) abnormalities, mitochondrial neurogastrointestinal encephalomyopathy (MNGIE). However, the impact of TP deficiency on lysosomes remains unclear, which are important for mitochondrial quality control and nucleic acid metabolism. Muscle biopsy tissue and skin fibroblasts from MNGIE patients, patients with m.3243 A > G mitochondrial encephalopathy, lactic acidosis and stroke-like episodes (MELAS) and healthy controls (HC) were collected to perform mitochondrial and lysosomal functional analyses. In addition to mtDNA abnormalities, compared to controls distinctively reduced expression of LAMP1 and increased mitochondrial content were detected in the muscle tissue of MNGIE patients. Skin fibroblasts from MNGIE patients showed decreased expression of LAMP2, lowered lysosomal acidity, reduced enzyme activity and impaired protein degradation ability. TYMP knockout or TP inhibition in cells can also induce the similar lysosomal dysfunction. Using lysosome immunoprecipitation (Lyso- IP), increased mitochondrial proteins, decreased vesicular proteins and V-ATPase enzymes, and accumulation of various nucleosides were detected in lysosomes with TP deficiency. Treatment of cells with high concentrations of dThd and dUrd also triggers lysosomal dysfunction and disruption of mitochondrial homeostasis. Therefore, the results provided evidence that TP deficiency leads to nucleoside accumulation in lysosomes and lysosomal dysfunction, revealing the widespread disruption of organelles underlying MNGIE.


Assuntos
DNA Mitocondrial , Fibroblastos , Lisossomos , Mitocôndrias , Encefalomiopatias Mitocondriais , Nucleosídeos , Timidina Fosforilase , Humanos , Lisossomos/metabolismo , Timidina Fosforilase/metabolismo , Timidina Fosforilase/deficiência , Timidina Fosforilase/genética , Encefalomiopatias Mitocondriais/metabolismo , Encefalomiopatias Mitocondriais/patologia , Encefalomiopatias Mitocondriais/genética , Fibroblastos/metabolismo , Fibroblastos/patologia , DNA Mitocondrial/genética , DNA Mitocondrial/metabolismo , Mitocôndrias/metabolismo , Nucleosídeos/metabolismo , Pseudo-Obstrução Intestinal/metabolismo , Pseudo-Obstrução Intestinal/patologia , Pseudo-Obstrução Intestinal/enzimologia , Pseudo-Obstrução Intestinal/genética , Oftalmoplegia/metabolismo , Oftalmoplegia/patologia , Oftalmoplegia/congênito , Distrofia Muscular Oculofaríngea/metabolismo , Distrofia Muscular Oculofaríngea/patologia , Masculino , Feminino , Pele/patologia , Pele/metabolismo , Proteína 2 de Membrana Associada ao Lisossomo/metabolismo
2.
Pediatr Surg Int ; 40(1): 124, 2024 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-38713441

RESUMO

PURPOSE: Megacystis-microcolon-intestinal hypoperistalsis syndrome (MMIHS) is a well described clinical condition, but reports are focused on microcolon and intestinal hypoperistalsis, while data on bladder management are scant. Aim of the study is to present urological concerns in MMIHS. METHODS: Retrospective evaluation of clinical data on urological management of MMIHS patients treated in the last 10 years. RESULTS: Six patients were enrolled (3 male, 3 female). Three girls had prenatal diagnosis of megacystis (1 vesicoamniotic shunt was placed). All patients had genetic diagnosis: 5 had ACTG2 gene mutations and 1 MYH11 mutation. All patients were addressed to our attention for urinary symptoms, such as urinary retention, urinary tract infections, acute renal injury. Two patients presented frequent stoma prolapses. All children underwent a complete urological evaluation, and then started a bladder management protocol (clean intermittent catheterization, via urethra or cystostomy-tube placement), with improvement of urinary infections, upper urinary tract dilation and stoma prolapses, if present. All patients had good renal function at last follow-up. CONCLUSION: We believe that MMIHS patients must be addressed soon and before onset of symptoms for a multidisciplinary evaluation, including an early assessment by a pediatric urologist expert in functional disorder, to preserve renal function at its best.


Assuntos
Anormalidades Múltiplas , Colo , Colo/anormalidades , Pseudo-Obstrução Intestinal , Bexiga Urinária , Bexiga Urinária/anormalidades , Humanos , Feminino , Estudos Retrospectivos , Masculino , Anormalidades Múltiplas/cirurgia , Colo/cirurgia , Bexiga Urinária/cirurgia , Lactente , Pseudo-Obstrução Intestinal/cirurgia , Pseudo-Obstrução Intestinal/diagnóstico , Recém-Nascido , Pré-Escolar , Mutação
3.
BMJ Case Rep ; 17(4)2024 Apr 16.
Artigo em Inglês | MEDLINE | ID: mdl-38627049

RESUMO

Megacystis microcolon intestinal hypoperistalsis syndrome (MMIHS) is a rare, congenital functional intestinal obstruction, characterised by megacystis (bladder distention in the absence of mechanical obstruction), microcolon and intestinal hypoperistalsis (dysmotility).We are reporting a case of a female child with normal antenatal course who presented with recurrent episodes of abdominal distension since the second day of life and underwent negative exploratory laparotomy on multiple occasions. She also had urinary retention with a grossly distended bladder, requiring drainage by clean intermittent catheterisation. Surgical procedures for bowel decompression, including gastrostomy and ileostomy, were carried out without success. Genetic analysis revealed a mutation in the human smooth muscle (enteric) gamma-actin gene (ACTG2 gene), clinching the diagnosis of MMIHS. The patient was managed with parenteral nutrition and prokinetic medications and tolerated jejunostomy feeds for a brief period before she succumbed to the illness.Female neonates or infants presenting with abdominal distension and dilated urinary tract should be investigated for MMIHS early on. A timely diagnosis will enable the early involvement of a multidisciplinary team to provide the best options available for management.


Assuntos
Anormalidades Múltiplas , Colo/anormalidades , Doenças Fetais , Pseudo-Obstrução Intestinal , Bexiga Urinária/anormalidades , Retenção Urinária , Lactente , Recém-Nascido , Criança , Humanos , Feminino , Gravidez , Pseudo-Obstrução Intestinal/diagnóstico , Pseudo-Obstrução Intestinal/terapia , Pseudo-Obstrução Intestinal/genética , Anormalidades Múltiplas/diagnóstico , Anormalidades Múltiplas/terapia , Anormalidades Múltiplas/genética , Colo/cirurgia , Peristaltismo
4.
Sci Rep ; 14(1): 6649, 2024 03 20.
Artigo em Inglês | MEDLINE | ID: mdl-38503815

RESUMO

Current treatments for inflammatory bowel disease (IBD) are often inadequate due to limited efficacy and toxicity, leading to surgical resection in refractory cases. IBD's broad and complex pathogenesis involving the immune system, enteric nervous system, microbiome, and oxidative stress requires more effective therapeutic strategies. In this study, we investigated the therapeutic potential of bone marrow-derived mesenchymal stem cell (BM-MSC) treatments in spontaneous chronic colitis using the Winnie mouse model which closely replicates the presentation and inflammatory profile of ulcerative colitis. The 14-day BM-MSC treatment regimen reduced the severity of colitis, leading to the attenuation of diarrheal symptoms and recovery in body mass. Morphological and histological abnormalities in the colon were also alleviated. Transcriptomic analysis demonstrated that BM-MSC treatment led to alterations in gene expression profiles primarily downregulating genes related to inflammation, including pro-inflammatory cytokines, chemokines and other biomarkers of inflammation. Further evaluation of immune cell populations using immunohistochemistry revealed a reduction in leukocyte infiltration upon BM-MSC treatment. Notably, enteric neuronal gene signatures were the most impacted by BM-MSC treatment, which correlated with the restoration of neuronal density in the myenteric ganglia. Moreover, BM-MSCs exhibited neuroprotective effects against oxidative stress-induced neuronal loss through antioxidant mechanisms, including the reduction of mitochondrial-derived superoxide and attenuation of oxidative stress-induced HMGB1 translocation, potentially relying on MSC-derived SOD1. These findings suggest that BM-MSCs hold promise as a therapeutic intervention to mitigate chronic colitis by exerting anti-inflammatory effects and protecting the enteric nervous system from oxidative stress-induced damage.


Assuntos
Colite , Doenças Inflamatórias Intestinais , Pseudo-Obstrução Intestinal , Transplante de Células-Tronco Mesenquimais , Células-Tronco Mesenquimais , Camundongos , Animais , Medula Óssea/patologia , Colite/induzido quimicamente , Células-Tronco Mesenquimais/patologia , Inflamação , Anti-Inflamatórios/efeitos adversos , Modelos Animais de Doenças
5.
Ann Transplant ; 29: e941881, 2024 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-38409779

RESUMO

BACKGROUND Mitochondrial neurogastrointestinal encephalopathy syndrome (MNGIE) is an autosomal recessive disease caused by thymidine phosphorylase deficiency leading to progressive gastrointestinal dysmotility, cachexia, ptosis, ophthalmoparesis, peripheral neuropathy and leukoencephalopathy. Although liver transplantation corrects thymidine phosphorylase deficiency, intestinal deficiency of the enzyme persists. Retrospective chart review was carried out to obtain clinical, biochemical, and pathological details. CASE REPORT We present a case of liver and subsequent intestine transplant in a 28-year-old man with MNGIE syndrome with gastrointestinal dysmotility, inability to walk, leukoencephalopathy, ptosis, cachexia, and elevated serum thymidine. To halt progression of neurologic deficit, he first received a left-lobe partial liver transplantation. Although his motor deficit improved, gastrointestinal dysmotility persisted, requiring total parenteral nutrition. After exhaustive intestinal rehabilitation, he was listed for intestine transplantation. Two-and-half years after liver transplantation, he received an intestine transplant. At 4 years after LT and 20 months after the intestine transplant, he remains off parenteral nutrition and is slowly gaining weight. CONCLUSIONS This is the first reported case of mitochondrial neurogastrointestinal encephalomyopathy to undergo successful sequential liver and intestine transplantation.


Assuntos
Pseudo-Obstrução Intestinal , Leucoencefalopatias , Encefalomiopatias Mitocondriais , Distrofia Muscular Oculofaríngea , Oftalmoplegia , Oftalmoplegia/congênito , Masculino , Humanos , Adulto , Caquexia , Estudos Retrospectivos , Encefalomiopatias Mitocondriais/cirurgia , Encefalomiopatias Mitocondriais/patologia , Oftalmoplegia/etiologia , Oftalmoplegia/cirurgia , Intestinos/patologia , Fígado/patologia
6.
Clin J Gastroenterol ; 17(2): 244-252, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38193986

RESUMO

BACKGROUND: Chronic intestinal pseudo-obstruction (CIPO) is a rare intestinal disorder characterized by impaired propulsion of the digestive tract and associated with symptoms of intestinal obstruction, despite the absence of obstructive lesions. CIPO includes several diseases. However, definitive diagnosis of its etiology is difficult only with symptoms or imaging findings. CASE PRESENTATION: A 56-year-old man was referred to our hospital due to a 3-year history of continuous abdominal distention. Imaging, including computed tomography of the abdomen, and endoscopy revealed marked dilatation of the entire small intestine without any obstruction point. Therefore, he was diagnosed with CIPO. Since medical therapy didn't improve his symptoms, enterostomy and percutaneous endoscopic gastro-jejunostomy were performed. These procedures improved abdominal symptoms. However, he required home central venous nutrition due to dehydration. The pathological findings of full-thickness biopsies of the small intestine taken during surgery revealed decreased number and degeneration of ganglion cells in the normal plexus. These findings led to a final diagnosis of CIPO due to acquired isolated hypoganglionosis (AIHG). CONCLUSIONS: Here, we report the case of a patient with CIPO secondary to adult-onset AIHG of the small intestine. Since AIHG cannot be solely diagnosed using clinical findings, biopsy is important for its diagnosis.


Assuntos
Obstrução Intestinal , Pseudo-Obstrução Intestinal , Masculino , Adulto , Humanos , Pessoa de Meia-Idade , Pseudo-Obstrução Intestinal/etiologia , Pseudo-Obstrução Intestinal/cirurgia , Pseudo-Obstrução Intestinal/diagnóstico , Dilatação Patológica , Atrofia Muscular , Intestino Delgado/cirurgia , Doença Crônica
9.
Am Surg ; 89(11): 5021-5023, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37501639

RESUMO

Eosinophilic myenteric ganglionitis (EMG) is a rare pathologic finding within the Auerbach myenteric plexus characterized by eosinophilic infiltration on light microscopy. The plexus's ultimate obliteration results in chronic intestinal pseudo-obstruction (CIPO). EMG is almost exclusively seen in the pediatric population. The diagnosis of EMG is made through full-thickness rectal biopsy and EMG is not detectable through routine screening measures such as imaging or colonoscopy. The current treatment modality for this disorder is not standardized, and has often been treated with systemic steroids given its eosinophilic involvement. This case presents a 73-year-old male with chronic constipation presenting with new obstipation in the setting of recent orthopedic intervention requiring outpatient opioids. Admission radiographs were consistent with sigmoid volvulus. Following endoscopic detorsion, exploratory laparotomy revealed diffuse colonic dilation and distal ischemia requiring a Hartmann's procedure. Surgical pathology revealed EMG, increasing the complexity of subsequent surgical decision-making after his urgent operation.


Assuntos
Pseudo-Obstrução Intestinal , Volvo Intestinal , Doenças do Colo Sigmoide , Masculino , Humanos , Criança , Idoso , Volvo Intestinal/complicações , Volvo Intestinal/diagnóstico , Volvo Intestinal/cirurgia , Colo , Pseudo-Obstrução Intestinal/patologia , Pseudo-Obstrução Intestinal/cirurgia , Plexo Mientérico/patologia , Colonoscopia , Doenças do Colo Sigmoide/complicações , Doenças do Colo Sigmoide/diagnóstico
10.
Neurogastroenterol Motil ; 35(10): e14643, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37448106

RESUMO

BACKGROUND: Mitochondrial neurogastrointestinal encephalomyopathy (MNGIE) is a rare mitochondrial disease caused by mutations in TYMP, encoding thymidine phosphorylase. Clinically it is characterized by severe gastrointestinal dysmotility associated with cachexia and a demyelinating sensorimotor polyneuropathy. Even though digestive manifestations are progressive and invariably lead to death, the features of gastrointestinal motor dysfunction have not been systematically evaluated. The objective of this study was to describe gastrointestinal motor dysfunction in MNGIE using state-of-the art techniques and to evaluate the relationship between motor abnormalities and symptoms. METHODS: Prospective study evaluating gastrointestinal motor function and digestive symptoms in all patients with MNGIE attended at a national referral center in Spain between January 2018 and July 2022. KEY RESULTS: In this period, five patients diagnosed of MNGIE (age range 16-46 years, four men) were evaluated. Esophageal motility by high-resolution manometry was abnormal in four patients (two hypoperistalsis, two aperistalsis). Gastric emptying by scintigraphy was mildly delayed in four and indicative of gastroparesis in one. In all patients, small bowel high-resolution manometry exhibited a common, distinctive dysmotility pattern, characterized by repetitive bursts of spasmodic contractions, without traces of normal fasting and postprandial motility patterns. Interestingly, objective motor dysfunctions were detected in the absence of severe digestive symptoms. CONCLUSIONS AND INFERENCES: MNGIE patients exhibit a characteristic motor dysfunction, particularly of the small bowel, even in patients with mild digestive symptoms and in the absence of morphological signs of intestinal failure. Since symptoms are not predictive of objective findings, early investigation is indicated.


Assuntos
Gastroenteropatias , Pseudo-Obstrução Intestinal , Encefalomiopatias Mitocondriais , Masculino , Humanos , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Estudos Prospectivos , Pseudo-Obstrução Intestinal/genética , Encefalomiopatias Mitocondriais/diagnóstico , Encefalomiopatias Mitocondriais/genética , Mutação , Gastroenteropatias/genética
11.
Int Urol Nephrol ; 55(10): 2457-2464, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37421510

RESUMO

PURPOSE: We aim to study the preoperative and intraoperative factors and compare against specific outcomes in patients undergoing transperitoneal laparoscopic donor nephrectomy and see if we could find what were the predictive factors for these outcomes. METHODS: This is a prospective cohort study done in a single high-volume transplant center. 153 kidney donors were evaluated over a period of 1 year. The preoperative factors such as age, gender, smoking status, obesity, visceral obesity, perinephric fat thickness, number of vessels, anatomic abnormalities, comorbidities, and side of kidney and intraoperative factors such as lay of colon on the kidney, height of splenic or hepatic flexure of colon, loaded or unloaded colon, and sticky mesenteric fat were compared against specific outcomes such as duration of surgery, duration of hospital stay, postoperative paralytic ileus, and postoperative wound complications. RESULTS: Multivariate logistic regression models were used to study the variables of interest against the various outcomes. There were three positive risk factors for increased hospital stay, which were perinephric fat thickness and height of splenic or hepatic flexure of colon and smoking history. There was one positive risk factor for postoperative paralytic ileus which is lay of colon with relation to kidney and there was one positive risk factor for postoperative wound complication which was visceral fat area. CONCLUSION: The predictive factors for adverse postoperative outcomes after transperitoneal laparoscopic donor nephrectomy were perinephric fat thickness, height of splenic or hepatic flexure, smoking status, lay or redundancy of colon with relation to kidney and visceral fat area.


Assuntos
Pseudo-Obstrução Intestinal , Laparoscopia , Humanos , Nefrectomia/efeitos adversos , Estudos Prospectivos , Rim/cirurgia , Laparoscopia/efeitos adversos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia , Pseudo-Obstrução Intestinal/etiologia , Pseudo-Obstrução Intestinal/cirurgia , Estudos Retrospectivos
12.
Neurosci Lett ; 812: 137395, 2023 08 24.
Artigo em Inglês | MEDLINE | ID: mdl-37451357

RESUMO

Enteric glial cells are emerging as critical players in the regulation of intestinal motility, secretion, epithelial barrier function, and gut homeostasis in health and disease. Enteric glia react to intestinal inflammation by converting to a 'reactive glial phenotype' and enteric gliosis, contributing to neuroinflammation, enteric neuropathy, bowel motor dysfunction and dysmotility, diarrhea or constipation, 'leaky gut', and visceral pain. The focus of the minireview is on the impact of inflammation on enteric glia reactivity in response to diverse insults such as intestinal surgery, ischemia, infections (C. difficile infection, HIV-Tat-induced diarrhea, endotoxemia and paralytic ileus), GI diseases (inflammatory bowel diseases, diverticular disease, necrotizing enterocolitis, colorectal cancer) and functional GI disorders (postoperative ileus, chronic intestinal pseudo-obstruction, constipation, irritable bowel syndrome). Significant progress has been made in recent years on molecular pathogenic mechanisms of glial reactivity and enteric gliosis, resulting in enteric neuropathy, disruption of motility, diarrhea, visceral hypersensitivity and abdominal pain. There is a growing number of glial molecular targets with therapeutic implications that includes receptors for interleukin-1 (IL-1R), purines (P2X2R, A2BR), PPARα, lysophosphatidic acid (LPAR1), Toll-like receptor 4 (TLR4R), estrogen-ß receptor (ERß) adrenergic α-2 (α-2R) and endothelin B (ETBR), connexin-43 / Colony-stimulating factor 1 signaling (Cx43/CSF1) and the S100ß/RAGE signaling pathway. These exciting new developments are the subject of the minireview. Some of the findings in pre-clinical models may be translatable to humans, raising the possibility of designing future clinical trials to test therapeutic application(s). Overall, research on enteric glia has resulted in significant advances in our understanding of GI pathophysiology.


Assuntos
Clostridioides difficile , Sistema Nervoso Entérico , Gastroenteropatias , Pseudo-Obstrução Intestinal , Humanos , Recém-Nascido , Gliose/metabolismo , Sistema Nervoso Entérico/patologia , Gastroenteropatias/terapia , Gastroenteropatias/metabolismo , Gastroenteropatias/patologia , Neuroglia/metabolismo , Inflamação/metabolismo , Dor Abdominal/metabolismo , Dor Abdominal/patologia , Motilidade Gastrointestinal , Diarreia/metabolismo , Diarreia/patologia , Constipação Intestinal/metabolismo , Pseudo-Obstrução Intestinal/terapia , Pseudo-Obstrução Intestinal/metabolismo , Pseudo-Obstrução Intestinal/patologia
13.
BMC Pregnancy Childbirth ; 23(1): 473, 2023 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-37365520

RESUMO

BACKGROUND: Intestinal pseudo-obstruction (IPO) is a rare disease, and its clinical manifestations can resemble mechanical intestinal obstruction leading to unnecessary and potentially harmful surgery. Certain autoimmune diseases have been associated with IPO, however, cases secondary to Sjögren's syndrome (SjS) are especially rare. CASE PRESENTATION: We described the first case of SjS-associated acute IPO in pregnancy, which was successfully treated with combined immunosuppressive therapy and resulted in an uneventful caesarean delivery. CONCLUSIONS: Women with SjS is likely to experience more complications during pregnancy, and IPO rather than the classic symptoms could be the first sign of SjS flares. IPO should be suspected in patients with unrelenting symptoms of small bowel obstruction, and a multidisciplinary approach can provide optimal management of such high-risk pregnancies.


Assuntos
Doenças Autoimunes , Pseudo-Obstrução Intestinal , Síndrome de Sjogren , Gravidez , Humanos , Feminino , Síndrome de Sjogren/complicações , Pseudo-Obstrução Intestinal/etiologia , Pseudo-Obstrução Intestinal/diagnóstico , Pseudo-Obstrução Intestinal/tratamento farmacológico
14.
ANZ J Surg ; 93(9): 2086-2091, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37132128

RESUMO

BACKGROUND: Chronic intestinal pseudo-obstruction (CIPO) may be a primary or secondary phenomenon and is often multifactorial. Treatment is largely directed at improving colonic motility. The use of cholinesterase inhibitors such as pyridostigmine has been hypothesized to increase acetylcholine in the bowel, improving symptoms and transit times. METHODS: A systematic review of the use of pyridostigmine in CIPO was conducted using scientific and commercial search engines identifying scientific studies enrolling adult human subjects, published from 2000 to 2022 in the English language. RESULTS: Four studies were identified including two randomized controlled trials (RCT) and two observational studies. The studies had heterogenous inclusion criteria, dosing regimens and reported outcomes. Two studies were identified as being at high risk of bias. All studies reported improved patient outcomes with use of pyridostigmine, and low rates (4.3%) of mild cholinergic side effects. No major side effects were reported. CONCLUSION: The use of pyridostigmine in management of CIPO is biologically plausible due to its ability to increase colonic motility, and early studies on its role are uniformly suggestive of benefit with low side-effect profile. Four clinical studies have been conducted to date, with small sample sizes, heterogeneity and high risk of bias. Further high-quality studies are required to enable assessment of pyridostigmine's utility as an effective management strategy in CIPO.


Assuntos
Pseudo-Obstrução Intestinal , Brometo de Piridostigmina , Adulto , Humanos , Brometo de Piridostigmina/uso terapêutico , Brometo de Piridostigmina/farmacologia , Motilidade Gastrointestinal , Pseudo-Obstrução Intestinal/tratamento farmacológico , Pseudo-Obstrução Intestinal/diagnóstico , Inibidores da Colinesterase/uso terapêutico , Inibidores da Colinesterase/farmacologia , Doença Crônica
15.
Int J Colorectal Dis ; 38(1): 147, 2023 May 30.
Artigo em Inglês | MEDLINE | ID: mdl-37248431

RESUMO

BACKGROUND: Minimally invasive right hemicolectomy has been increasingly used for the treatment of right hemicolectomy disease, and both intracorporeal anastomosis (ICA) and extracorporeal anastomosis (ECA) are available to restore intestinal continuity. However, the advantages and disadvantages of these two anastomoses are highly controversial. The present meta-analysis evaluated the effectiveness of ICA versus ECA in minimally invasive right colectomy to improve the grade of evidence. METHODS: We searched the PubMed, Embase, Cochrane Library, and Web of Science databases for randomized controlled trials (RCTs) comparing intracorporeal versus extracorporeal anastomosis in laparoscopic or robotic right hemicolectomy published from database inception to February 2023. Two researchers performed the literature review, data extraction, bias assessment, and meta-analysis of the data using Review Manager 5.4 software. RESULTS: Seven RCTs with a total of 750 patients were included in the meta-analysis. The results showed a lower incidence of postoperative paralytic ileus (RR 0.62, 95% CI 0.39 ~ 0.99, p = 0.04) and shorter incision length (MD - 1.38; 95% CI: - 1.98 ~ - 0.78, p < 0.00001), but longer operative time (MD 10.69; 95% CI: 2.76 ~ 18.63, p = 0.008). The remaining events including bleeding (RR 0.49, 95% CI: 0.12 ~ 2.04, p = 0.33), anastomotic leak (RR 0.62, 95% CI: 0.39 ~ 0.99, p = 0.85), surgical site infection (RR 0.15, 95% CI: 0.22 ~ 1.25, p = 0.15), overall perioperative morbidity (RR 0.86, 95% CI: 0.58 ~ 1.26, p = 0.44), number of harvested lymph nodes (MD 0.75; 95% CI: - 0.15 ~ 1.65, p = 0.10), and length of hospital stay (MD - 0.27; 95% CI: - 0.91 ~ 0.38, p = 0.42) were not statistically significant. CONCLUSIONS: Compared to ECA, ICA in minimally invasive right hemicolectomy reduced the risk of postoperative paralytic ileus and shortened the length of the incision but prolonged the operative time.


Assuntos
Neoplasias do Colo , Pseudo-Obstrução Intestinal , Laparoscopia , Humanos , Anastomose Cirúrgica/efeitos adversos , Anastomose Cirúrgica/métodos , Ensaios Clínicos Controlados Aleatórios como Assunto , Colectomia/efeitos adversos , Colectomia/métodos , Fístula Anastomótica/cirurgia , Laparoscopia/efeitos adversos , Laparoscopia/métodos , Resultado do Tratamento , Neoplasias do Colo/cirurgia , Estudos Retrospectivos
16.
Niger J Clin Pract ; 26(4): 497-501, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37203116

RESUMO

Background: Postoperative paralytic ileus refers to the disruption of the normal coordinated propulsive motor activity of the gastrointestinal system following surgery. Surgery causes inflammation in the muscle walls of organs with an intestinal lumen that, in turn, leads to a decrease in intestinal motility. Aim: The aim of this study was to investigate the efficacy of gastrografin, neostigmine, and their combined administration in patients diagnosed with paralytic ileus in the postoperative period. Patients and Methods: One-hundred twelve patients were included from January 2017 and November 2019. The retrospective study is involving prolonged postoperative ileus cases following colorectal surgery. The effect of gastrografin, neostigmine, and gastrografin neostigmine combination was compared retrospectively in the treatment of prolonged ileus after surgery. Results: The study covered 112 patients. Gastrografin was administered to 63 patients; neostigmine was administered to 29, while 20 patients received the combination of the two. Data pertaining to the comparison of the two groups revealed that patients in the gastrografin group were discharged earlier than those in the neostigmine group. Further, patients in the combined group had earlier gas and/or stool discharge and were also discharged from the hospital earlier than those in the neostigmine group. Conclusion: Gastrografin and combined use of gastrografin and neostigmine are effective and viable methods for postoperative ileus cases. Gastrografin can safely be used in patients with anastomoses.


Assuntos
Íleus , Pseudo-Obstrução Intestinal , Humanos , Neostigmina/uso terapêutico , Estudos Retrospectivos , Diatrizoato de Meglumina , Íleus/tratamento farmacológico , Íleus/etiologia , Complicações Pós-Operatórias/tratamento farmacológico , Pseudo-Obstrução Intestinal/complicações
17.
Transplant Proc ; 55(2): 459-465, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37059668

RESUMO

INTRODUCTION: Patients undergoing lung transplantation (LT) are at high risk of developing serious abdominal complications, which can lead to higher rates of morbidity and mortality. The aim of this study was to investigate the incidence and spectrum of these complications when they develop during the first 30 days after LT, as well as their possible association with possible risk factors. METHODS: A retrospective study of 552 patients undergoing LT between 01/02/2006 and 06/03/2021 was carried out. A descriptive and analytical evaluation of the patients who experienced complications and those who did not was performed comparatively. Data related to patient characteristics and the lung transplantation procedure were collected. RESULTS: Overall, 8.2% of patients developed severe abdominal complications during the first 30 days; paralytic ileus was the most frequent (31.1%), closely followed by visceral perforation (26.7%). The percentage of patients who required an invasive procedure to manage post-transplant complications was 57.8%. Surgical intervention was required in 39.8%. The variables that showed a significant relationship with the development of severe short-term abdominal complications in the univariate analysis were the time of surgery, the use of ECMO/ ECC and red blood cell transfusion during or after surgery. In the multivariate study, however, only duration of surgery remained significant (p=0.03). CONCLUSION: The incidence of severe short-term abdominal complications after LT period was 8%. The commonest complications were paralytic ileus and intestinal perforation. Most patients did not require surgery. The only risk factor found associated with these complications was the duration of the surgical intervention.


Assuntos
Pseudo-Obstrução Intestinal , Complicações Pós-Operatórias , Humanos , Estudos Retrospectivos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Transplantados , Fatores de Risco , Pulmão , Pseudo-Obstrução Intestinal/epidemiologia , Pseudo-Obstrução Intestinal/etiologia
18.
Int J Mol Sci ; 24(6)2023 Mar 16.
Artigo em Inglês | MEDLINE | ID: mdl-36982793

RESUMO

The immunoglobulin-like cell adhesion molecule CLMP is a member of the CAR family of cell adhesion proteins and is implicated in human congenital short-bowel syndrome (CSBS). CSBS is a rare but very severe disease for which no cure is currently available. In this review, we compare data from human CSBS patients and a mouse knockout model. These data indicate that CSBS is characterized by a defect in intestinal elongation during embryonic development and impaired peristalsis. The latter is driven by uncoordinated calcium signaling via gap junctions, which is linked to a reduction in connexin43 and 45 levels in the circumferential smooth muscle layer of the intestine. Furthermore, we discuss how mutations in the CLMP gene affect other organs and tissues, including the ureter. Here, the absence of CLMP produces a severe bilateral hydronephrosis-also caused by a reduced level of connexin43 and associated uncoordinated calcium signaling via gap junctions.


Assuntos
Conexina 43 , Pseudo-Obstrução Intestinal , Animais , Camundongos , Humanos , Conexina 43/genética , Conexina 43/metabolismo , Adesão Celular , Proteína de Membrana Semelhante a Receptor de Coxsackie e Adenovirus , Moléculas de Adesão Celular/metabolismo
19.
Dig Dis Sci ; 68(7): 2963-2974, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-36920665

RESUMO

BACKGROUND: Diabetes Mellitus causes a systemic oxidative stress due in part to the hyperglycemia and the reactive oxygen species generated. Up to 75% of diabetic patients present with an autonomic neuropathy affecting the Enteric Nervous System. Deficits in the human population are chronic dysmotilities with either increased (i.e., constipation) or decreased (i.e., diarrhea) total gastrointestinal transit times. These are recapitulated in the streptozocin-induced diabetic rat, which is a model of Type I Diabetes Mellitus. AIMS: Examine the effects that a precursor of nicotinamide adenosine dinucleotide (NAD), nicotinamide riboside (NR), had on the development of dysmotility in induced diabetic rats and if fecal microbiota transplant (FMT) could produce the same results. MATERIALS AND METHODS: Utilizing a 6-week treatment paradigm, NR was administered intraperitoneally every 48 h. Total gastrointestinal transit time was assessed weekly utilizing the carmine red method. Three weeks following hyperglycemic induction, FMT was performed between NR-treated animals and untreated animals. SIGNIFICANT RESULTS: There is improvement in overall gastrointestinal transit time with the use of NR. 16S microbiome sequencing demonstrated decreased alpha and beta diversity in induced diabetic rats without change in animals receiving FMT. Improvements in myenteric plexus ganglia density in small and large intestines in diabetic animals treated with NR were seen. CONCLUSIONS: NR treatment led to functional improvement in total gastrointestinal transit time in induced diabetic animals. This was associated with neuroprotection in the myenteric plexuses of both small and large intestines of induced diabetic rats. This represents an important first step in showing NR's benefit as a treatment for diabetic enteric neuropathy. Streptozocin-induced diabetic rats have improved transit times and increased myenteric plexus ganglia density when treated with intraperitoneal nicotinamide riboside.


Assuntos
Diabetes Mellitus Experimental , Neuropatias Diabéticas , Pseudo-Obstrução Intestinal , Humanos , Ratos , Animais , Plexo Mientérico , Estreptozocina/efeitos adversos , Diabetes Mellitus Experimental/complicações , Diabetes Mellitus Experimental/induzido quimicamente , Neuroproteção , Niacinamida/efeitos adversos
20.
Rev. colomb. reumatol ; 30(1)mar. 2023.
Artigo em Inglês | LILACS | ID: biblio-1536231

RESUMO

Gastrointestinal involvement in SLE has been reported in up to 50%, generally secondary to the adverse effects of treatment. Intestinal pseudo-obstruction is caused by hypomotility related to ineffective propulsion. The case of a 51-year-old patient with intestinal obstruction is presented. She was taken to surgical management due to suspicion of adhesions, with a stationary clinical course; the control tomography documented loop dilation and bilateral hydroureteronephrosis, associated with markers of lupus activity. It was managed as an intestinal pseudo-obstruction due to SLE with resolution of her symptoms. High diagnostic suspicion results in timely treatment and the reduction of complications.


El compromiso gastrointestinal en lupus eritematoso sistémico (LES) ha sido reportado hasta en un 50%, generalmente secundario a los efectos adversos del tratamiento. La pseudoobstrucción intestinal es causada por hipomotilidad relacionada con una propulsión inefectiva. Se presenta el caso de una paciente de 51 arios, con obstrucción intestinal por sospecha de bridas, que fue llevada a manejo quirúrgico y tuvo una evolución clínica estacionaria. La tomografía de control documentó dilatación de asas e hidroureteronefrosis bilateral, en tanto que los paraclínicos mostraron actividad lúpica. Se manejó como una pseudoobstrucción intestinal por LES con resolución del cuadro. La alta sospecha diagnóstica favorece el tratamiento oportuno y la disminución de las complicaciones.


Assuntos
Humanos , Feminino , Pessoa de Meia-Idade , Doenças do Sistema Digestório , Pseudo-Obstrução Intestinal , Doenças da Pele e do Tecido Conjuntivo , Doenças do Tecido Conjuntivo , Gastroenteropatias , Obstrução Intestinal , Lúpus Eritematoso Sistêmico
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