Psychological distress, anxiety, depression, stress level, and coping style in HIV-pregnant women in Mexico.

PURPOSE: To evaluate the presence of psychological distress (PD) and its association with the mental health and coping styles of pregnant women living with HIV (PWLWH). METHOD: An observational, cross-sectional descriptive study was performed. Seventy-three PWLWH were included. Patients responded to a psychometric battery for PD, depression, anxiety, stress, and coping style evaluation. The scales used in the study were: Goldberg's 30-item General Health Questionnaire (GHQ-30), State-Trait Anxiety Inventory (STAI), Zung Depression Self-Measurement Scale (ZDS), Nowack Stress Profile, Lazarus and Folkman's Coping Styles Questionnaire. RESULTS: PD was observed in 31.5% of the participants. PD-positive patients showed a higher probability of presenting traits of depression and anxiety and medium/high stress levels. Besides, they preferentially used emotion-focused coping styles. CONCLUSION: PD is associated with a higher probability of presenting anxiety and depression in PWLWH. Emotion-focused coping style could be a factor in decision-making associated with risk behaviors in PWLWH.

A randomized controlled trial comparing isosorbide dinitrate-oxytocin versus misoprostol-oxytocin at management of foetal intrauterine death.

BACKGROUND: The metabolic activity of endogenous nitric oxide (NO) and the medical use of nitrovasodilatory drugs like isosorbide dinitrate have been shown to be potential inducers inducers of cervical ripening prior to surgical evacuation of the uterus. OBJECTIVE: To assess the therapeutic efficacy and safety of combined isosorbide dinitrate-oxytocin in the management of intrauterine foetal death (IUFD). METHODS: Sixty women with IUFD after 20 weeks of gestation requesting uterine evacuation were randomly selected to receive isosorbide dinitrate gel solution (80 mg/1.5 mL; n = 30) or misoprostol gel solution (100 mcg/1.5 mL; n = 30) every 3 h with a maximum of four doses or until a Bishop score >7 was reached. Subsequently, patients received a high dose of intravenous oxytocin until complete uterus evacuation was achieved. Therapeutic efficacy was evaluated by mean the relative risk of the foetal expulsion based on comparison of event rates, and the proportion of women induced to labor at 7, 10 and 15 h after the administration of isosorbide dinitrate or misoprostol. Safety was assessed on the basis of woman´s vital signs and evaluation of adverse effects, including headache, abdominal pain, pelvic pain, lower back pain, nausea, dizziness and vomiting. RESULTS: The foetal expulsion rate using the isosorbide dinitrate-oxytocin combination was approximately 4.4 times, and at least 2.1 times, the foetal expulsion rate with the misoprostol-oxytocin regimen at any given point in time. The proportion of women achieved vaginal delivery at 15 hours was 100% for the isosorbide dinitrate-oxytocin group and 86.7% for the misoprostol-oxytocin group. The average delivery induction interval was significantly lower when isosorbide dinitrate-oxytocin was used (8.7 ± 3.1 h) than when misoprostol-oxytocin (11.9 ± 3.1 h) was used. A total of 20% of patients in the isosorbide dinitrate-oxytocin group recorded headache, and no cases of uterine tachysystole, haemorrhage or coagulopathy were recorded. CONCLUSION: This study indicates that intravaginal isosorbide dinitrate followed by intravenous oxytocin was more effective than the conventional method used to induce labour in the medical management of foetal death in pregnancies after 20 weeks of gestation. TRIAL REGISTRATION: Clinicaltrials.gov NCT02488642.

Transplacental transmission of cutaneous Leishmania mexicana strain in BALB/c mice.

The vertical transmission of leishmaniasis has been reported in species that cause visceral leishmaniasis. However, this condition has scarcely been documented in species that cause cutaneous leishmaniasis. The aim of this study was to determine experimentally whether L. mexicana is transmitted vertically. A control group of BALB/c mice and a group infected with L. mexicana were mated, the gestation was monitored, and females were killed before delivery. Four resorptions (P = 0.023) and eight fetal deaths (P = 0.010) were observed in the infected female group; furthermore, the offspring body weight of the infected group was lower than the body weight of the healthy group (P = 0.009). DNA amplification by polymerase chain reaction (PCR) revealed that all placentas and maternal spleens as well as 39 of 110 fetal spleens obtained from the offspring of infected mothers tested positive for Leishmania. In conclusion, L. mexicana is transmitted transplacentally and causes fetal death, resorption, and reduction in offspring body weight.

Differences in gastrointestinal symptoms according to gender in Rome II positive IBS and dyspepsia in a Latin American population.

OBJECTIVES: Irritable bowel syndrome (IBS), constipation, and bloating are more prevalent in women than men, but gender differences associated with dyspepsia are inconsistent.The aim of this study was to determine gender differences in the prevalence of symptoms diagnostic for functional gastrointestinal disorders (FGIDs) in subjects with IBS and dyspepsia, as well as in controls in Mexico. METHODS: A database of 1,021 subjects (61% women) who completed the Rome II Modular Questionnaire (RIIMQ) in Spanish Mexico was analyzed. Gender differences in the frequency of all symptoms included in the RIIMQ between those fulfilling criteria for IBS (28.9%), dyspepsia (4.0%) and controls without any FGIDs (38.2%) were studied. Subjects fulfilling criteria only for other FGIDs were excluded. RESULTS: There were higher proportions of women with IBS (67.8%) and dyspepsia (85.4%) compared with the control group (55.9%) (P<0.001). In IBS, women more frequently reported changes in the number of bowel movements (BMs) associated with the onset of abdominal discomfort/pain, fewer than three BMs/week and abdominal fullness/bloating/swelling than men. Men with IBS more frequently reported swallowing air to belch and abdominal pain that improved after a BM than women. In controls, burping and hard or lumpy stools were both more frequent in men. CONCLUSIONS: In Mexico, gender differences in FGIDs exist, with both IBS and dyspepsia being more common in women than men. In IBS, symptoms related to constipation and bloating were more common in women, but the dyspepsia group was too small to draw any conclusions. Finally, this is the first study to report that belching is more common in men than women controls not fulfilling criteria for any FGID.

Modification of sleep architecture in an animal model of experimental cirrhosis.

AIM: To analyze the polygraphic sleep patterns during cirrhosis progression in a rat model by repeated CCl(4) administration. METHODS: Male Wistar rats received three weekly injections of CCl(4) for 11 wk, and were analyzed before and during the induction of cirrhosis. Rats were implanted with electrodes to record their sleep patterns. Polygraph recordings were made weekly over 11 wk for 8 h, during the light period. After a basal recording, rats received three weekly injections of CCl(4). Histological confirmation of cirrhosis was performed after 11 wk. RESULTS: The results showed a progressive decrease in total wake time that reached statistical significance from the second week of treatment. In addition, there was an increase in total time of slow wave sleep (SWS) II and rapid eye movement sleep (REM sleep) in most of the 11 wk. SWS I showed no significant variations. During the final weeks, a significant increase in REM sleep frequency was also observed. Histological analyses of the livers showed unequivocal signs of cirrhosis. CONCLUSION: These data suggest that hepatic failure produced by CCl(4) administration is capable of modifying the sleep pattern even after only a few doses.

Effective use of FibroTest to generate decision trees in hepatitis C.

AIM: To assess the usefulness of FibroTest to forecast scores by constructing decision trees in patients with chronic hepatitis C. METHODS: We used the C4.5 classification algorithm to construct decision trees with data from 261 patients with chronic hepatitis C without a liver biopsy. The FibroTest attributes of age, gender, bilirubin, apolipoprotein, haptoglobin, alpha2 macroglobulin, and gamma-glutamyl transpeptidase were used as predictors, and the FibroTest score as the target. For testing, a 10-fold cross validation was used. RESULTS: The overall classification error was 14.9% (accuracy 85.1%). FibroTest's cases with true scores of F0 and F4 were classified with very high accuracy (18/20 for F0, 9/9 for F0-1 and 92/96 for F4) and the largest confusion centered on F3. The algorithm produced a set of compound rules out of the ten classification trees and was used to classify the 261 patients. The rules for the classification of patients in F0 and F4 were effective in more than 75% of the cases in which they were tested. CONCLUSION: The recognition of clinical subgroups should help to enhance our ability to assess differences in fibrosis scores in clinical studies and improve our understanding of fibrosis progression.

Acetaldehyde-induced mitochondrial dysfunction sensitizes hepatocytes to oxidative damage.

Acetaldehyde (Ac), the main metabolite of ethanol oxidation, is a very reactive compound involved in alcohol-induced liver damage. In the present work, we studied the effect of Ac in mitochondria functionality. Mitochondria from Wistar rats were isolated and treated with Ac. Ac decreased respiratory control by 50% which was associated with a decrease in adenosine triphosphate content (28.5%). These results suggested that Ac could be inducing changes in cell redox status. We determined protein oxidation, superoxide dismutase (SOD) activity, and glutathione ratio, indicating that Ac induced an enhanced oxidation of proteins and a decrease in SOD activity (90%) and glutathione/oxidized GSH ratio (36%). The data suggested that Ac-induced oxidative stress mediated by mitochondria dysfunction can lead to cell sensitization and to a second oxidative challenge. We pretreated hepatocytes with Ac followed by treatment with antimycin A, and this experiment revealed a noticeable decrease in cell viability, determined by neutral red assay, in comparison with cells treated with Ac alone. Our data demonstrate that Ac impairs mitochondria functionality generating oxidative stress that sensitizes cells to a second damaging signal contributing to the development of alcoholic liver disease.