Deoxyribonucleic Acid Extraction and Quantification from Human Saliva Deposited on Foods with Bitemarks.

AIM: The aim of this study is to evaluate the potential of deoxyribonucleic acid (DNA) recovery from bite marks in foods, in different collection types, from DNA quantification. MATERIALS AND METHODS: The sample consisted of 80 swabs, obtained from 20 cheese pieces, bitten by the same person, using the double-swab technique in the center and the periphery of the bite. A statistical analysis was carried out using Statistical Package for the Social Sciences (SPSS) statistical software version 20.0, with values of p < 0.05 being considered statistically significant. RESULTS: The DNA was recovered in all cheese pieces, regardless of the collection types and the bite region. However, the comparative analysis of DNA recovery potential in the four swabs allowed us to infer that the collections in the central region of the bite (DC and WC) were the ones that presented better precision, in addition to extracting a higher DNA concentration, the dry swab being in the center of the bite which presented better results. CONCLUSION: The results proved the effectiveness of the double-swab technique for collecting genetic materials in bite marks; however, in the food used, a single collection at the center of the bite would be enough, optimizing the resources and time needed for the analysis. CLINICAL SIGNIFICANCE: Due to the difficulties of physically comparing a site of a skin lesion and the dental arches of the suspect, the evidence of DNA in saliva has been used to indicate the perpetrator of the bite. In addition, the collection, preservation, and isolation of saliva DNA can be done at low cost and provide flexibility for clinical and laboratory workflow.

Racial Disparities in Medication Use During Pregnancy: Results from the NISAMI Cohort.

Purpose: This study aimed to evaluate racial disparities in medication use and associated factors among pregnant women receiving prenatal care at Brazilian Unified Health System primary care health units in the northeast region. Patients and Methods: A total of 1058 pregnant women in the NISAMI Cohort were interviewed between June 2012 and February 2014. Medicines used during pregnancy were classified according to the Anatomical Therapeutic Chemical (ATC) classification system and ANVISA pregnancy risk categories. Prevalence ratios (crude and adjusted) and 95% confidence intervals (CIs) were estimated using Poisson regression with robust error variance. All analyses were stratified by race (Asian, black, brown/mixed, Brazilian indigenous, and white). Results: Approximately 84% of the pregnant women used at least one medication, with a lower proportion among white women. The most reported medications were antianemic preparations (71.08%; 95% CI 68.27-73.72%), analgesics (21.74%; 95% CI 19.36-24.32%), and drugs for functional gastrointestinal disorders (18.81%; 95% CI 16.57-21.28%). Approximately 29% of women took potentially risky medications during pregnancy, with a higher prevalence among Asian and white women. Factors associated with medication use during pregnancy include a greater number of prenatal consultations, higher education levels, health problems, and smoking. In addition, maternal age above 25 years, smoking status, and two or more previous pregnancies were associated with potentially risky medication use during pregnancy. Conclusion: A high prevalence of medication use during pregnancy was found; however, this prevalence was lower among white women. Nonetheless, black and brown women used antianemic preparations less frequently. This finding suggests that race is a factor of inequity in prenatal care, demanding public policies to mitigate it.

Oral manifestations of HIV infection in patients receiving highly active antiretroviral therapy (HAART) in Bahia, Brazil.

OBJECTIVES: We investigated the oral manifestations of HIV-infected patients in Salvador, Brazil, and their relationship to immunologic, sociodemographic, and therapeutic factors. METHODS: This was a cross-sectional study that used data from adult patients' medical records in the dentistry service of the AIDS Reference Center in Salvador, Brazil. We reviewed the patients' records to collect information concerning oral health status and data on socioeconomic status, immunologic status, and treatment. RESULTS: A total of 993 patients were included in the study, of whom 473 (47.6 percent) were male. Approximately 5.5 percent of the patients presented with any oral lesions. Oral lesions were the most common in the patients with fewer than 350 CD4+ T lymphocytes (8.4 percent) and with viral loads greater than 10,000 copies (8.3 percent). CONCLUSIONS: Our study shows that lesions are more common in patients with advanced immune suppression and low level of schooling. Oral candidiasis and angular chelitis were the most common lesions seen.

[Dual contraception adherence among HIV-infected women]. / Adesão à dupla contracepção entre mulheres infectadas pelo HIV.

PURPOSE: To determine adherence to dual contraception using depot-medroxyprogesterone acetate (DMPA) and condom among HIV-infected women. METHODS: A cross-sectional study carried out from December 2013 to September 2014 at a local reference center, with application of questionnaire elaborated after Delphi panel and content validation to 114 HIV(+) women aged 15 to 49 years, using DMPA plus condom for contraception. RESULTS: Mean age was 33.2 ± 7.2 years, mean time since HIV detection was 8.1 ± 5.2 years, mean time of antiretroviral use was 6.8 ± 5 years and mean CD4 cells/mm3 count was 737.6 ± 341.1. Sexual HIV acquisition was reported by 98.2% (112/114), antiretroviral use by 85.9% (98/114), and 77.7% (84/114) had a CD4>500/mm3 count. Having a single sex partner was reported by 78.9% (90/114), with HIV serodiscordance in 41.2% (47/114) of couples, 21.9% did not know the serological status of their partner and in 37.7% of cases (43/114) the partner was unaware of the HIV(+) status of the woman. The last pregnancy was unplanned in 71.9% of cases (82/114) and 14.9% of the women had become pregnant the year before, with pregnancy being unplanned in 70.5% (12/17) of cases. Current use of DMPA was reported by 64.9% (74/114), with genital bleeding in 48.2% (55/114) and weight gain in 67.5% (77/114). Use of a male condom was reported by 62.2% of the subjects (71/114). Three reported that they always used a female condom and ten that they eventually used it. Unprotected vaginal sex was reported by 37.7% (43/114) and unprotected anal intercourse was reported by 32.4% (37/114). Partner resistance to use a condom occurred in 30.7% of cases (35/114). Dual contraception using DMPA with condom was reported by 42.9% (49/114). A partner who resisted wearing a condom was associated with poor adhesion (PR=0.3; 95%CI 0.2-0.7; p<0.001). A partner who was unaware that a woman was infected with HIV favored adherence (PR=1.8; 95%CI 1.2-2.7; p=0.013). CONCLUSION: The percentage of dual contraception using DMPA plus condom was 42.9%, maintaining unplanned pregnancies and unprotected sex. Resistance of partners to use a condom increased three times the chance of a woman not adhering to dual contraception, and the partner not knowing women's HIV infection almost doubled the chance to adhere to safe contraception. GOALS: to offer new hormonal contraceptives and to involve the partners in contraception and serologic detection tests.

[Factors associated with HIV/AIDS infection among adolescents and young adults enrolled in a Counseling and Testing Center in the State of Bahia, Brazil]. / Fatores associados à infecção pelo HIV/AIDS entre adolescentes e adultos jovens matriculados em Centro de Testagem e Aconselhamento no Estado da Bahia, Brasil.

The study seeks to investigate factors associated with HIV infection among adolescents and young adults registered in the Counseling and Testing Center (CTC) of Feira de Santana, Bahia. An analytical study with a cross-sectional design was conducted using data from the CTC Information System in the period from 2007 to 2011. Information on 3,768 individuals were studied and the proportional difference was checked using the Pearson chi-squared test and stratified analysis by Prevalence Rate (PR) with confidence intervals of 95%, considering the serological status as the outcome. During the period under study, 73 young people were infected with HIV (1.94%). In the female population, statistically significant associations were identified for HIV status and drug use and consumption of alcohol and other drugs, as well as being married or in a stable relationship. In males, the consumption of other drugs and homosexual/bisexual orientation were associated with HIV status. In both sexes, in the category in a stable relationship the HIV status was associated with a partner using drugs and/or infected with a STD and/or HIV. These findings indicate the need for effective measures for the control and prevention of HIV infection among young people.