The oral application of drugs is the most popular route through which the systemic effect can be achieved. Nevertheless, oral administration is limited by difficulties related to physicochemical properties of the drug molecule, including low aqueous solubility, instability, low permeability, and rapid metabolism, all of which result in low and irregular oral bioavailability. The enhancement of oral bioavailability of drug molecules with such properties could lead to extreme complications in drug preparations. Oral lipid based nanoparticles seems to possess extensive advantages due to their ability to increase the solubility, simplifying intestinal absorption and decrease or eradicate the effect of food on the absorption of low soluble, lipophilic drugs and therefore improving the oral bioavailability. The present review provides a summary of the general theory of lipid based nanoparticles, their preparation methods as well as their oral applications. Moreover, the oral drug delivery challenges are discuhis review, the most current and promising studies involving Solid Lipid Nanoparticles and Nanostructured Lipid Carriers as oral drug carriers are reported aiming to assist researchers who focus their research on lipid based nanoparticles.We present the case of a 28-year-old man with recently-diagnosed human immunodeficiency virus and hepatitis C virus infection. He developed obstructive cholangiopathy secondary to cytomegalovirus and Kaposi sarcoma, both diagnosed by endoscopic retrograde cholangiopancreatography and biopsies. He received antiretroviral therapy, chemotherapy and valganciclovir with full recovery.Idiopathic intracranial hypertension (IIH), or pseudotumor cerebri, is a diagnosis of exclusion. Elevated intracranial pressure (ICP) can result from a variety of inflammatory and structural causes affecting cerebrospinal fluid production and absorption. First described in 1935, syphilis is a well-established cause of elevated ICP, referred to as syphilitic hydrocephalus. see more We report a case of a 49-year-old man presenting with vision changes and headache who was treated for IIH without resolution of symptoms, and eventually diagnosed with syphilitic hydrocephalus. Syphilis should be considered as a cause of elevated ICP prior to a diagnosis of IIH.Monitoring sexually transmitted infections (STIs) in adolescents is essential to inform STI prevention strategies at primary and secondary levels in this key population. We aim to describe recent trends in STIs among adolescents and to analyse their socio-demographic and behavioural characteristics in Catalonia, Spain between 2012 and 2017. Data on Chlamydia trachomatis (CT) infection, gonorrhoea and syphilis cases aged from 13 to 19 years reported to the Catalan Mandatory Notifiable System from 2012 to 2017 were analysed. Diagnosis rates were calculated and a descriptive analysis was performed. Between 2012 and 2017, CT infection, gonorrhoea and syphilis cases reported among adolescents aged 13-19 years accounted for more than one-eleventh of all reported cases in Catalonia. The rate of the three nationally-notifiable STIs increased dramatically among adolescents. CT infection rates rose from 13 to 144.1 per 100,000 adolescents between 2012 and 2017, an increase of 1007%; gonorrhoea cases increased by 246% (from 13.4 to 45.4/100,000) and syphilis cases increased by 247% (from 1.7 to 5.9/100,000). Gonorrhoea and syphilis cases affected mainly males while CT infection cases were mostly in females (84%). Adolescents are being increasingly affected by CT infection, gonorrhoea and syphilis. A broader array of intervention strategies aimed at adolescents should be reinforced through strong prevention campaigns, improved sexual health information, as well as encouragement of regular offers of STI screening by healthcare providers.Despite widespread prevalence of lubricant use and rectal douching for receptive anal intercourse (RAI) among men who have sex with men (MSM), research evaluating the association of these behaviors with sexually transmitted infections (STIs) is limited. This is an observational analysis of a longitudinal cohort of predominantly Black/Latino MSM in Los Angeles. Every six months from August 2014 to January 2018, participants received STI screening and surveys evaluating lubricant use, douching, substance use, and sexual risk behaviors. General estimating equations evaluated the association between consistent lubricant use and douching for RAI with positive rectal Neisseria gonorrhoeae, Chlamydia trachomatis, and/or syphilis (positive STI). Among 313 participants across 552 study visits, 16.5% (91/552) had positive STI. Consistent lubricant use was reported in 52.7% (243/552) and rectal douching in 57.6% (318/552) of study visits. Consistent lubricant use was associated with STI diagnosis (adjusted OR [AOR] 1.81; 95% CI 1.11-2.96; p = 0.018). Each episode of rectal douching before RAI was associated with 2% increased odds of positive STI (AOR 1.02; 95% CI 1.00-1.04; p = 0.041). Among this cohort of HIV-positive and high-risk HIV-negative MSM, lubricant use and douching was common and independently associated with an STI, suggesting the utility of prevention messaging around barrier methods/condoms for sexual encounters involving douching/lubricant use.Pubic hair grooming is common in many countries, but little is known about this practice in Africa. Grooming has been positively associated with self-reported sexually transmitted infections (STIs). This study aimed to investigate the prevalence and safety of pubic hair grooming in two South African settings. In KwaZulu-Natal province, 1218 women participating in the Evidence for Contraceptive Options and HIV Outcomes Trial completed an interviewer-administered questionnaire on pubic hair grooming practices, and were tested for Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG) and herpes simplex virus type 2 (HSV-2). Pubic hair removal was reported by 705 (58.2%) of women. Common areas for grooming were the pubis (n = 616, 99.4%), vagina/perineum (n = 529, 85.3%) and inner thigh (n = 255, 41.1%). Half (n= 361, 51.4%) removed some or all of their pubic hair at least monthly and 59 (8.4%) once a week or more often. Common side effects reported included itching (n = 439, 77.1%) and pimples and blisters (n = 249, 43.