Hydrogen Peroxide as an Adjuvant Therapy for COVID-19: A Case Series of Patients and Caregivers in the Mexico City Metropolitan Area.

Knowledge of the antiseptic effects of hydrogen peroxide (HO) dates back to the late 19th century, and its mechanisms of action has been amply described. Globally, many physicians have reported using HO successfully, in different modalities, against COVID-19. Given its anti-infective and oxygenating properties, hydrogen peroxide may offer prophylactic and therapeutic applications for responding to the COVID-19 pandemic.

[Vascular microsurgery course: 40 years at the Centro Médico Nacional 20 de Noviembre (ISSSTE) and 33 years at the Faculty of Medicine of the UNAM].

On June 1977, "Centro Médico Nacional 20 de Noviembre," in Mexico City, implemented the first vascular microsurgery course. The aim was to develop clinical applications of microsurgery focus on surgical specialties, due to the necessity to develop microsurgical skills. On August 1964 we started the program course at the surgical department of the School of Medicine at Universidad Nacional Autónoma de México (UNAM).

Hepatocellular carcinoma: epidemiological profile from a cohort of federal employees in Mexico.

Introduction: Hepatocellular carcinoma (HCC) has become a frequent type of cancer in Mexico. At the present time it represents the 19th cause of death in the population.

Objective: To recognize the epidemiological profile and the treatment results in a cohort of federal employees with HCC.

[Optical coherence tomography applications in otolaryngology].

Optical coherence tomography is a novel imaging technique providing high-resolution bidimensional images of tissue microstructures. Several studies have been published on the use of this technique in different fields of medicine, particularly ophthalmology. There are very few studies in the field of otolaryngology.

Bone marrow mononuclear cells stimulate angiogenesis when transplanted into surgically induced fibrocollagenous tunnels: results from a canine ischemic hindlimb model.

Progenitor cell transplantation has been considered as a potential angiogenesis therapy for the ischemic hindlimb. In this work we performed an ischemic hindlimb model in dogs. We ligated the middle sacra and the external right iliac arteries.

Fibrin glue: an alternative technique for nerve coaptation--Part II. Nerve regeneration and histomorphometric assessment.

The results of nerve repair with fibrin glue and microsuture were evaluated in rat nerve transection models. Ninety Wistar-Furth rat median nerves were exposed, transected, and repaired in an end-to-end fashion with one of four substances/techniques: 1) human fibrin sealant (Quixil); 2) autologous graft and human fibrin sealant (Quixil); 3) bovine fibrin sealant (Tissucol); and 4) nylon microsuture, epineurial technique. Histologic analyses were performed at 3-, 6-, and 9-month postoperative intervals, and factors evaluated included: presence of inflammatory cells (i.

Fibrin glue: an alternative technique for nerve coaptation--Part I. Wave amplitude, conduction velocity, and plantar-length factors.

The search for better surgical repair of nerve injuries should be aimed at uncovering alternatives that not only are efficient, but also enhance nerve growth. The purpose of this study was to compare functional nerve responses following repair with either a traditional microsuture technique or Quixil human fibrin sealant. Thirty female Lewis rats received transection of the right sciatic nerve.

[Evaluation of the symptomatology and quality of life in functional dyspepsia before and after Helicobacter pylori eradication treatment].

Background: Whether H. pylori infection plays a role in FD is ill defined; however, it is recommended to prescribe eradication treatment in patients with dyspepsia without alarm symptoms. Results of this advice are controversial, principally due to absence of instruments that provide an objective measure of changes in symptoms and quality of life.

[Comparative study between rapid urease test, imprint and histopathological study for Helicobacter pylori diagnosis].

Helicobacter pylori infection is relevant, due to its role in different gastric pathologies; there are several diagnostic methods, which are divided into invasive and non-invasive. In the first category histology has been considered the gold standard, while other methods include imprint with Gram stain and rapid urease test, which can produce dependable results. The aim of this study is to compare several available techniques for H.

Administration of bone marrow cells into surgically induced fibrocollagenous tunnels induces angiogenesis in ischemic rat hindlimb model.

We established a comparative model of angiogenic induction in previously formed fibrocollagenous tunnels in rat inner thigh muscles. A unilateral hindlimb chronic ischemia model was performed in male Sprague-Dawley rats. A device was then inserted in the central portion of the inner thigh muscles.

[Prevalence of and risk factors for hepatitis C in blood donors].

Objective: Determine hepatitis C prevalence and risk factors in blood donors from the Blood Bank at the Centro Médico Nacional 20 de Noviembre ISSSTE, in Mexico City.

Methods: A total of 41,957 blood donors were included in the study was done from January 1996 to August 2000. To study risk factors, a case-control study cases were defined as blood donors with repeatedly positive anti-hepatitis C virus (HCV) ELISA test.