Telogen effluvium and COVID-19: a cross-sectional study.

OBJECTIVE: COVID-19 is a febrile infectious disease caused by severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2). This virus affects several organs, including the skin. Acute telogen effluvium (TE) is a non-scarring hair loss characterized by diffuse hair shedding that begins three months after a stressful event and can last up to six months. COVID-19 infection is one of these potential stressors. Recently, there has been a reported link between increased scalp hair shedding and post-infection patients during the COVID-19 outbreak. The present work aimed to study the possible effects of COVID-19 on hair and the relationship between COVID-19 and TE and to assess the level of awareness about TE in the Asir region of Saudi Arabia. SUBJECTS AND METHODS: A questionnaire-based cross-sectional study was conducted using a pre-validated questionnaire. The study involved 561 participants from the Asir region of Saudi Arabia. Eligible participants were individuals from the Asir region who were 20 years of age or older, had previously contracted COVID-19 and had no history of TE before infection. All statistical methods used were two-tailed with an alpha level of 0.05, considering significance if the p-value was lower than or equal to 0.05. RESULTS: A total of 1,000 eligible participants completed the study questionnaire. The mean age was 32.5 ± 13.9 years, and 494 (88.1%) participants were females. In addition, 558 (99.5%) of the study participants had received the COVID-19 vaccine. A total of 411 (73.3%) participants experienced an increase in hair loss after COVID-19 infection, and 171 (30.5%) began suffering from pain when combing their hair. In addition, 182 participants (32.4%) had a family history of TE. Only 109 (10.9%) participants had a good awareness level about TE, while 452 (80.6%) had an overall poor awareness level. There was a significant relationship between the level of awareness and age, where 23.9% of the participants aged 20-29 years had a good level of awareness vs. 16.1% of others aged 40 years or older (p = 0.041). Moreover, 26.9% of participants with a family history of TE had a good awareness of TE, vs. 15.8% of those with no family history of TE (p = 0.002). In addition, significant correlations were found between increased hair loss post-COVID-19 infection and female gender (77.3% vs. 43.3%; p = 0.001) as well as suffering from pain when combing hair (86.5% vs. 65.5%; p = 0.001). CONCLUSIONS: In our study, the incidence of TE was highly related to COVID-19 infections among both sexes. However, the incidence was greater among the female population. The awareness level toward post-COVID-19 TE was poor among most of the participants in our study.

Comparative efficacy of oral contraceptive versus local treatment versus intense pulsed light combined with vacuum in endocrine acne in women.

Acne is the most common affection of adolescents, although it can be also found in adult women. Our study was aimed at the comparative assessment of three different therapies over a three-month period, applied to women with moderate comedogenic and papulo-pustular endocrine acne. In the study 116 female patients with endocrine localized face acne were included and divided into three groups: group I with 42 patients was treated with a combination of contraceptive pill + local treatment + pulsed-vacuum light; group II with 38 patients was treated with contraceptives and pulsed-vacuum light and group III with 36 patients was treated only with local treatment. The acne evaluation was made using the Global Acne Grading System (GAGS). Statistical data processing was carried out using the STATA software. For the comedogenic form of acne, the good and very good results were superior in group I vs group II and III (83.33% vs 31.58% vs 5.56%) at the end of the three months of treatment. For the papulo-pustulous form of acne, good and very good results were similar in groups I and II (92.86% vs 73.68%) both after the first month of treatment and at the end of the study, well above the local treatment group (13.99%). Our study highlighted the superiority of laser treatment combined with hormonal treatment, compared to hormonal and local treatment in the comedogenic form of acne, and the superiority of hormonal treatment combined (or not) with laser treatment in the papulo-pustular form compared to local treatment.

Simulating real-life exposures to uncover possible risks to human health: A proposed consensus for a novel methodological approach.

In real life, consumers are exposed to complex mixtures of chemicals via food, water and commercial products consumption. Since risk assessment usually focuses on individual compounds, the current regulatory approach doesn't assess the overall risk of chemicals present in a mixture. This study will evaluate the cumulative toxicity of mixtures of different classes of pesticides and mixtures of different classes of pesticides together with food additives (FAs) and common consumer product chemicals using realistic doses after long-term exposure. Groups of Sprague Dawley (CD-SD) rats (20 males and 20 females) will be treated with mixtures of pesticides or mixtures of pesticides together with FAs and common consumer product chemicals in 0.0, 0.25 × acceptable daily intake (ADI)/tolerable daily intake (TDI), ADI/TDI and 5 × ADI/TDI doses for 104 weeks. All animals will be examined every day for signs of morbidity and mortality. Clinical chemistry hematological parameters, serum hormone levels, biomarkers of oxidative stress, cardiotoxicity, genotoxicity, urinalysis and echocardiographic tests will be assessed periodically at 6 month intervals. At 3-month intervals, ophthalmological examination, test for sensory reactivity to different types of stimuli, together with assessment of learning abilities and memory performance of the adult and ageing animals will be conducted. After 24 months, animals will be necropsied, and internal organs will be histopathologically examined. If the hypothesis of an increased risk or a new hazard not currently identified from cumulative exposure to multiple chemicals was observed, this will provide further information to public authorities and research communities supporting the need of replacing current single-compound risk assessment by a more robust cumulative risk assessment paradigm.

A Comparative Study on Antibiotic Resistance of Klebsiella Strains from Surgical and Intensive Care Wards.

INTRODUCTION: Klebsiella infections are common in Intensive Care Unit (ICU) and surgical wards. In order to establish the prophylaxis protocols, we must know the prevalence of infections and the antibiotic resistance profiles. MATERIAL AND METHODS: This cross-sectional study included isolates from patients in County Clinical Emergency County Hospital, Craiova, Romania: 1254 isolates from the ICU and 1040 isolates from surgical wards. We used an automated method (Phoenix analyzer, Becton-Dickinson, USA) with antimicrobial testing according to CLSI 2014. We tested by disc diffusion the ESBL and carbapenemases production, using kits ESBL Confirm ID and KPC/Metallo-beta-lactamase/OXA-48 Confirm (ROSCO Diagnostica, Denmark). The patients in ICU were also screened at admission for carbapenemase producting strains by PCR (GeneXpert® II, Cepheid, Sunnyvale, CA, USA) for the carbapenemases: KPC, IMP-1, VIM-1, NDM, OXA-48. RESULTS: Klebsiella strains were more prevalent in ICU (20.81%) vs. surgical wards (16.34%) and they were resistant in high percentages at: cefuroxime (95.81% vs. 87.21%),ceftazidime (91.70% vs. 84.71%), cefepime (84.2% vs. 69.82%). The highest differences in resistance were observed for Tygecycline (Risk Ratio (RR) = 7.69), Imipenem/Cilastatine (RR=3.36), Cefoperazone with sulbactam (RR=2.58), Ciprofloxacine (RR=2.11), Gentamycin (RR=2.05) and Ertapenem (RR=1.93). The ICU strains showed MDR in 48.57% of cases vs. 23.57% in surgery strains. The prevalence of ESBL production was 82.4% in ICU vs. 32.3% in surgical wards. The prevalence of carbapenemase producing strains was 43.68% in ICU vs. 23.53% in surgical wards. CONCLUSIONS: The infections with Klebsiella spp. are more frequent in ICU compared with surgical wards and their antibiotic resistance is greater.