Publications by authors named "Cervantes Bustamante Roberto"

Background: The aim of this study is to present the current views of a diverse group of experts on the diagnosis and treatment of Cow's Milk Protein Allergy (CMPA) in children under 2 years of age in Mexico.

Material And Methods: The study, led by a scientific committee of five experts in CMPA, was divided into six phases, including a modified Delphi process. A total of 20 panelists, all of whom were pediatric specialists, participated in administering a comprehensive 38-item questionnaire.

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Immunological mechanisms of non-IgE-mediated cow's milk protein allergy (CMPA) are not well understood. Such a circumstance requires attention with the aim of discovering new biomarkers that could lead to better diagnostic assays for early treatment. Here, we sought both to investigate the mechanism that underlies non-IgE-mediated CMPA and to identify cow's milk immunoreactive proteins in a Mexican pediatric patient group (n = 34).

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A swallowing disorder or dysphagia is defined as a disorder in the sequence of swallowing, during the oral or pharyngeal phase, which compromises the safety and/or efficiency of transit of the food bolus to the esophagus. The evaluation of neurodevelopment, nutrition, and preventive medicine actions are as important as the clinical evaluation of dysphagia, so they must be included and systematized in all pediatric evaluations; This evaluation can be divided into different parts: bedside swallowing evaluation, instrumental swallowing evaluation, and additional studies. The management of swallowing disorders requires a multidisciplinary team approach, depending on the child's age, cognitive and physical abilities, and the specific swallowing and feeding disorder, ensuring adequate and safe nutrition and improving the patient's quality of life.

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Introduction: Chronic active Epstein Barr virus infection (CAEBV) is a rare condition, where the body is unable to counteract Epstein Barr viral replication (EBV), leading the patient to a chronic state with variable symptoms. Early recognition of infrequent or atypical clinical manifestations is relevant due to the particularities of their management and prognosis.

Objective: to describe a case of CAEBV manifes ted with colitis and hepatitis, summarizing the clinical-pathological and endoscopic characteristics and their evolution.

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Introduction: Dyspepsia comprises a group of symptoms that can have organic or functional origin. The purpose of this study was to describe the main causes of dyspepsia and its clinical evolution in children cared for in a tertiary care hospital.

Material And Methods: Retrospective study in children with dyspepsia.

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Article Synopsis
  • This study examined the relationship between baseline impedance (BI), mean nocturnal baseline impedance (MNBI), and acid exposure time (AET) in children suspected of having gastroesophageal reflux disease.
  • The research involved a retrospective analysis of 68 children, showing that 25% had pathological AET and that MNBI was typically higher than BI in certain measurement channels.
  • The findings indicated that lower impedance values (both BI and MNBI) were associated with pathological AET, suggesting that these measurements should be included in routine assessments for children with suspected reflux issues.
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Background: Acute diarrhea is the second leading cause of preventable mortality and morbidity in children worldwide. This study aimed to identify the main pathogens associated with acute diarrhea and to describe changes in gut microbiota in Mexican children.

Methods: This single-center observational study included 30 children (6 months to 5 years old) with acute diarrhea who were referred to the Instituto Nacional de Pediatría of Mexico City and 15 healthy volunteers (control group).

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Background: Cow's milk protein allergy (CMPA) is the most prevalent food allergy in children, and its pathogenesis remains poorly understood. It has been shown that the combination of genetic predisposition, perinatal factors, and intestinal imbalance of the immune response mediated by cytokines may play an essential role in CMPA pathogenesis.

Aim: To characterize the gene expression of Th1, Th2, and Th17 cytokines in the duodenum and rectum in patients with CMPA.

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Background: esophageal manometry is the standard criterion for the evaluation of dysphagia and the diagnosis of a primary motor disorder of the esophagus in adults and children.

Aims: to describe the diagnosis according to the Chicago classification (CC) v3.0 in children with dysphagia, in whom an esophageal motility disorder was documented.

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Background And Aims: small intestinal bacterial overgrowth (SIBO) is a well-known cause of chronic abdominal pain (CAP) during the pediatric age. On the other hand, children with a history of some allergic disorder present CAP more frequently. The aim of this study was to determine the association between the presence of allergic diseases and SIBO in patients diagnosed with CAP.

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Proteomics is the study of the expression of changes and post-translational modifications (PTM) of proteins along a metabolic condition either normal or pathological. In the field of health, proteomics allows obtaining valuable data for treatment, diagnosis or pathophysiological mechanisms of different illnesses. To illustrate the aforementioned, we describe two projects currently being performed at the Instituto Nacional de Pediatría: The immuno-proteomic study of cow milk allergy and the Proteomic study of childhood cataract.

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Chronic abdominal pain has many etiologies, one of them being parasites. The aim of this study was to find an association between chronic abdominal pain in children and Blastocystis hominis (Bh). Clinical files of patients with Bh and functional abdominal pain were reviewed.

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Cow's milk allergy (CMA) is an immune-based disease that has become an increasing problem. The diagnosis and management of CMA varies from one clinical setting to another and represents a challenge in pediatric practice. In addition, because nonallergic food reactions can be confused with CMA symptoms, there is an overdiagnosis of the disease.

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Gastrointestinal endoscopy is a procedure that appeared at the end of the seventies and beginning of the eighties in adult patients. With time, however, the instruments have become more sophisticated and have been adapted for use in children; with this the procedure has become at present not only an important diagnostic arm but also an indispensable therapeutic procedure in much pediatric pathology. The purpose of this article is to show any physician who treats children the main therapeutic advantages and indications of this procedure.

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The goal of this paper is to present a clinical case of a 4 year old boy, with hepatomegaly, splenomegaly and intestinal lipid infiltration due to a inborn error of lipid metabolism known as cholesterol ester storage disease. The main clinical manifestations were hepatomegaly, splenomegaly, hypertriglyceridemia, hypercholesterolemia. Duodenal endoscopy showed a yellow appearance of the mucous, and the histological study revealed the presence of macrophages with granular material.

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Article Synopsis
  • Peutz-Jeghers syndrome is an inherited condition marked by benign tissue growths (hamartomatous polyps) and skin discoloration, with a higher prevalence in females.
  • The majority of the cases studied involved gastrointestinal issues, as this region is commonly affected by the polyps.
  • Treatment involves endoscopic removal of polyps, and ongoing monitoring through various medical tests is essential due to an increased risk of cancer associated with the syndrome.*
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Unlabelled: Gastroesophageal reflux (GER) is a common disease in children less one year old. It is present around 10% of unselected infant population. 40-50% have abnormal 24 h pH monitoring.

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Iron-deficiency anemia is still a health problem worldwide. Iron supplementation of some foods such as milk formulas and cereals apparently has not been the solution due to bioavailability of iron. In Mexico, there is high prevalence of anemia in children to date, mainly those under 2 years of age and predominantly in the Southern part of the country.

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Background: Juvenile polyposis (JP) is a frequent cause of lower gastrointestinal bleeding. It is present in 3-4% of the population < 21 years of age and represents 90% of all polyps in childhood. The most common complaints are hematoquezia, abdominal pain, and polyp prolapse.

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