Late survival of Neanderthals at the southernmost extreme of Europe.

The late survival of archaic hominin populations and their long contemporaneity with modern humans is now clear for southeast Asia. In Europe the extinction of the Neanderthals, firmly associated with Mousterian technology, has received much attention, and evidence of their survival after 35 kyr bp has recently been put in doubt. Here we present data, based on a high-resolution record of human occupation from Gorham's Cave, Gibraltar, that establish the survival of a population of Neanderthals to 28 kyr bp. These Neanderthals survived in the southernmost point of Europe, within a particular physiographic context, and are the last currently recorded anywhere. Our results show that the Neanderthals survived in isolated refuges well after the arrival of modern humans in Europe.

Relationship between glucose control, glycemic variability, and oxidative stress in children with type 1 diabetes.

INTRODUCTION: Few studies assessing the relationship between oxidative stress and glycemic variability in children with type 1 diabetes mellitus (T1DM) are available, and most of them reported no significant results. OBJECTIVE: To assess the relationship between glucose control, glycemic variability, and oxidative stress as measured by urinary excretion of 8-iso-prostanglandin F2-alpha (8-iso-PGF2α) in children with T1DM. MATERIALS AND METHODS: A cross-sectional study including 25 children with T1DM. Participants were evaluated during five days in two different situations: 1st phase during a summer camp, and 2nd phase in their everyday life at home. The following data were collected in each study phase:. - Six capillary blood glucose measurements per day. Mean blood glucose (MBG) levels and glucose variability parameters, including standard deviation, coefficient of variation, and mean amplitude of glycemic excursions (MAGE), were calculated. - Capillary HbA1c level. - 24-h urine sample to measure 8-iso-PGF2α. RESULTS: There were no statistically significant differences in urinary 8-iso-PGF2α levels (142±37 vs. 172±61pg/mg creatinine) and glucose control and glycemic variability parameters between both phases. In the 2nd phase, statistically significant correlations were found between urinary 8-iso-PGF2α and HbA1c levels (r=0.53), MBG (r=0.72), standard deviation (r=0.49), and MAGE (r=0.42). No significant correlations between glucose control, glycemic variability and urinary 8-iso-PGF2α excretion were found in the 1st phase. CONCLUSIONS: A significant correlation was found between glycemic variability and HbA1c level and urinary 8-iso-PGF2α excretion in a group of children with T1DM during their daily lives. Additional studies are needed to confirm this finding and to explore its long-term impact on health.

Cambios ventilatorios después de una traqueotomía en neumonía por COVID-19 / Ventilatory changes after a tracheostomy in COVID-19 pneumonia

Introducción: existe aún una controversia sobre los efectos en los parámetros ventilatorios en pacientes sometidos a una traqueotomía, y los estudios en casos de pacientes con SARS-CoV-2 son escasos. Objetivo: describir los cambios en los parámetros ventilatorios en pacientes operados de traqueotomía por SARS-CoV-2 en la unidad de cuidados intensivos (UCI). Métodos: se realizó un estudio retrospectivo, descriptivo y longitudinal en el que se incluyeron las variables como edad, sexo, comorbilidades, tiempo de intubación, parámetros ventilatorios, gasométricos y el índice de Kirby. Se utilizó estadística descriptiva con medidas de tendencia central y medidas de dispersión. Resultados: se recibieron 493 casos con COVID-19, 133 (26,35 %) ingresaron, 21 fueron operados en la UCI; el género masculino fue 76 % y edad de 56 años; la obesidad y la hipertensión fueron las comorbilidades más comunes, todos con PCR positivo; los parámetros ventilatorios preoperatorios fueron presión positiva al final de la espiración (PEEP) de 7,61 y fracción inspirada de oxígeno (FiO2) de 41,42, la gasometría fue pH de 7,42, presión parcial de oxígeno (pO2) de 95,04, presión parcial de dióxido de carbono (pCO2) de 41,47, bicarbonato (HCO3) de 29,14, saturación de oxígeno (SatO2) de 94,7 %, el índice de Kirby x = 235; y los posoperatorios (PEEP de 7,19 y FiO2 de 40,6), la gasometría fue de pH de 7.44, pO2 de 43,7, pCO2 de 87,7, HCO3 de 27,4, SatO2 de 95,23 %. Fallecieron tres pacientes, dos pacientes complicados con sangrado y un caso con decanulación accidental. El tiempo promedio de ventilación mecánica de fue de 5,7 días. Conclusiones: la traqueotomía generó cambios muy sutiles en los parámetros ventilatorios y gasométricos; sin embargo, la liberación de la ventilación mecánica fue en promedio menor a una semana, desocupando espacio en la UCI.

Introduction: Controversy continues to exist regarding the effects on ventilatory parameters in patients undergoing tracheostomy, and studies in cases with SARS-CoV-2 are scarce. Objective: To describe changes in ventilatory parameters in patients undergoing tracheostomy for SARS-CoV-2 in the intensive care unit. Methods: A retrospective, descriptive, longitudinal study was carried out. Variables such as age, sex, comorbidities, time of IOT, ventilatory parameters, blood gases and the Kirby index were included. Descriptive statistics with measures of central tendency and measures of dispersion were used. Results: n = 493 COVID-19 cases were received, n = 133 (26.35%) were admitted, 21 were operated on in the ICU, male gender was 76%, age 56 years, obesity and hypertension were the most common comorbidities, all With CRP +, the preoperative ventilatory parameters x (PEEP 7.61) and (FiO2 41.42), the blood gas was (pH 7.42), (pO2 95.04), (pCO2 41.47), ( HCO3 29.14), (Saturation O2 94.7%) and the Kirby index x = 235 and postoperative x (PEEP 7.19) and (FiO2 40.6), the blood gas was (pH 7.44), (pO2 43.7), (pCO2 87.7), (HCO3 27.4), (Saturation O2 95.23%). n = 3 died, two patients with bleeding complications and one case with accidental decannulation. The mean time of mechanical ventilation was n = 5.7 days. Conclusions: The tracheostomy generated very subtle changes in the ventilatory and gasometric parameters, however, the release of mechanical ventilation was on average less than one week, emptying space in the ICU.

Hipertrofia de amígdalas linguales: presentación de casos revisión narrativa / Lingual tonsil hypertrophy: presentation of cases narrative review

Actualmente no es sólito tener pacientes con síntomas causados por la implicación de las amígdalas linguales y que pasemos por alto su sospecha. Los signos y síntomas que pueden presentar los pacientes son variados, desde el síndrome de apnea obstructiva del sueño (síntoma más común) y disfagia hasta tos crónica mal abordada y, por lo mismo, tratada inadecuadamente. Presentamos los casos clínicos de dos pacientes con hipertrofia de amígdalas linguales y una revisión narrativa del tema.

Currently, it is not unusual to have patients with symptoms due to the involvement of lingual tonsils and let us go unnoticed their suspicion. The signs and symptoms that patients may present are varied, from giving obstructive sleep apnea syndrome (the most common symptom) dysphagia to poorly treated and poorly treated chronic cough. We present the clinical cases of two patients with hypertrophy of the lingual tonsils and a narrative review of the subject.