Neural substrates of cue reactivity and craving in gambling disorder.

Cue reactivity is an established procedure in addictions research for examining the subjective experience and neural basis of craving. This experiment sought to quantify cue-related brain responses in gambling disorder using personally tailored cues in conjunction with subjective craving, as well as a comparison with appetitive non-gambling stimuli. Participants with gambling disorder (n=19) attending treatment and 19 controls viewed personally tailored blocks of gambling-related cues, as well as neutral cues and highly appetitive (food) images during a functional magnetic resonance imaging (fMRI) scan performed ~2-3 h after a usual meal. fMRI analysis examined cue-related brain activity, cue-related changes in connectivity and associations with block-by-block craving ratings. Craving ratings in the participants with gambling disorder increased following gambling cues compared with non-gambling cues. fMRI analysis revealed group differences in left insula and anterior cingulate cortex, with the gambling disorder group showing greater reactivity to the gambling cues, but no differences to the food cues. In participants with gambling disorder, craving to gamble correlated positively with gambling cue-related activity in the bilateral insula and ventral striatum, and negatively with functional connectivity between the ventral striatum and the medial prefrontal cortex. Gambling cues, but not food cues, elicit increased brain responses in reward-related circuitry in individuals with gambling disorder (compared with controls), providing support for the incentive sensitization theory of addiction. Activity in the insula co-varied with craving intensity, and may be a target for interventions.

Características maternas y resultados perinatales en mujeres peruanas infectadas con COVID-19: Un estudio observacional y transversal / Maternal characteristic and perinatal outcomes among peruvian women infected with COVID-19. An observational and cross-sectional study

Objetivo: Determinar las características maternas de mujeres infectadas con COVID-19 y de sus neonatos nacidos en el Hospital de atención referencia Covid-19 (HRDT) entre abril y setiembre del 2020. Material y Métodos: Estudio observacional y transversal realizado en el HRDT que incluyó 703 pacientes obstétricas con COVID-19. Resultados: La edad promedio fue de 27 años. El 35.7 % fueron nulíparas y el 95% fueron asintomáticas para COVID-19. Tuvieron COVID-19 leve, moderado y severo el 3%,1% y 1%; respectivamente. Los síntomas más frecuentes fueron tos (84,85%) y anosmia (39,39%). Los signos más comunes fueron Taquipnea (60.61%) y dificultad respiratoria (51,52 %). La gasometría, dímero-D y ferritina sérica estuvieron alterados en el 71%, 54% y 30%; respectivamente. Las complicaciones médicas más frecuentes fueron: sepsis (2,28%), neumonía (2,13%), insuficiencia respiratoria (2,13%) y shock séptico (1,14%). Las complicaciones obstétricas más frecuentes fueron Rotura prematura de membranas (6,69%), preeclampsia severa (5,41%), síndrome abortivo (3.27%) y trabajo de parto pretérmino (2,56%). El 73,9% de partos fue por Cesárea. El 0,99 % de pacientes requirió unidad de cuidados intensivos y la letalidad materna fue del 0,2%. El 85,7% de neonatos fueron a término y el 97,2 % tuvo APGAR a los 5 minutos ≥7. Hubo 4 muertes neonatales (0,64%) y 16 óbitos (2,58%). Hubo 8 RT-PCR positivas en neonatos (1,3%). Conclusión: La mayoría de pacientes fueron nulíparas, menores de 35 años y asintomáticas para COVID-19. La mayoría de neonatos nacieron por cesárea y evolucionaron favorablemente. Hubo dos muertes maternas, 16 óbitos fetales y 4 muertes neonatales.

Objetive: To determine the maternal characteristics of women infected with COVID-19 and their neonates born in the COVID-19 referral hospital (HRDT) between April and September 2020.Material and Methods: Observational and cross-sectional study carried out in the HRDT that included 703 obstetric patients with COVID-19. Results: The average age was 27 years. 35.7% were nulliparous and 95% were asymptomatic for COVID-19. 3%, 1% and 1% had mild, moderate and severe COVID-19; respectively. The most frequent symptoms were cough (84.85%) and anosmia (39.39%). The most common signs were tachypnea (60.61%) and respiratory distress (51.52%). Blood gas, D-dimer, and ferritin were altered in 71%, 54%, and 30%; respectively. The most frequent medical complications were: sepsis (2.28%), pneumonia (2.13%), respiratory failure (2.13%) and septic shock (1.14%). The most frequent obstetric complications were premature rupture of membranes (6.69%), severe preeclampsia (5.41%), abortive syndrome (3.27%) and preterm labor (2.56%). 73.9% of deliveries were by Caesarean section. 0.99% of patients required intensive care unit and maternal mortality was 0. 2%. 85.7% of neonates were at term and 97.2% had APGAR ≥7 at 5 minutes. There were 4 neonatal deaths (0.64%) and 16 deaths (2,58%). There were 8 positive RT-PCR in neonates (1.3%). Conclusion: The majority of patients were nulliparous, under 35 years of age and asymptomatic for COVID-19. Most of the newborns were born by cesarean section and evolved favorably. There were two maternal deaths, 16 stillbirths, and 4 neonatal deaths.