The development of metabolic derangements as a result of HIV treatment has been an important area of research since the introduction of zidovudine in the 1980’s. Antiretroviral therapy has intensely evolved in the last three decades, with new drugs gradually incorporated into everyday clinical practice. With the life expectancy of people living with HIV rapidly approaching that of their HIV-negative counterparts, the influence of these antiretrovirals on the development of the components of the metabolic syndrome remains of major interest to clinicians and their patients. In this review, we aimed to discuss the impact of cART on components of the metabolic syndrome, i.e., weight, plasma lipid levels, plasma glucose levels, and blood pressure, describing the influence of cART classes and of individual antiretrovirals. We also aimed to outline the limitations of the research conducted to date and the remaining knowledge gaps in this area.

Cowpox is a rare zoonosis transmitted to humans mainly from cats. The disease usually causes skin lesions; however, the ocular form may lead to other serious complications. We describe a case of cowpox in a rare location of the upper eyelid of an immunocompetent male, which lead to necrosis of the upper eyelid, keratitis and leucomatous opacity, and the neovascularization of the cornea. The patient underwent several surgeries, including reconstruction surgery of the eyelids, correction of the medial canthus, and corneal neurotization with supraorbicular nerve transplantation. Suspicion of cowpox should be made in patients where there are poorly healing skin lesions accompanied by a painful black eschar with erythema and local lymphadenopathy. Ocular cowpox may lead to serious complications and possibly mimic anthrax. Diagnosis of cowpox can be confirmed by detection of cowpox virus DNA by polymerase chain reaction. Patients should be advised to protect themselves while handling sick animals.

Introduction Delay in HIV diagnosis and consequently late care entry with low CD4 counts remain a major challenge for the control of the HIV/AIDS epidemic. The aim of this study was to analyse the evolution of characteristics of the HIV epidemic in Poland. Methods Cross‐sectional data were collected for 3972 HIV‐infected patients followed up in 14 of 17 Polish HIV treatment centres in the years 2000–2015. Clinical data were analysed and factors associated with late presentation (baseline CD4 count < 350 cells/μL or history of AIDS‐defining illness) and advanced HIV disease (baseline CD4 count < 200 cells/μL or history of AIDS) were identified. Results The majority (57.6%) of patients entered care late, while 35.6% presented with advanced HIV disease. The odds of being linked to care late or with advanced HIV disease increased consistently across age categories, increasing from 2.55 [95% confidence interval (CI) 1.46–4.47] for late presentation and 3.13 (95% CI 1.49–6.58) for advanced disease for the 21–30‐year‐old category to 5.2 (95% CI 1.94–14.04) and 8.15 (95% CI 2.88–23.01), respectively, for individuals > 60 years of age. Increased risks of late entry and advanced HIV disease were also observed for injecting drug users [adjusted odds ratio (aOR) 1.74 (95% CI 1.16–2.60) and 1.55 (95% CI 1.05–2.30), respectively], with lower aOR associated with the men who have sex with men transmission route [aOR 0.3 (95% CI 0.31–0.59) and 0.39 (95% CI 0.29–0.53), respectively]. The frequencies of cases in which patients were linked to care late and with advanced HIV disease decreased over time from 67.6% (2000) to 53.5% (2015) (P < 0.0001) and from 43.5% (2000) to 28.4% (2015) (P = 0.001), respectively. Conclusions Despite improvements over time, most patients diagnosed with HIV infection entered care late, with a third presenting with advanced HIV disease. Late care entry remains common among people who inject drugs and heterosexual groups.

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The intestinal fatty acid binding protein (I-FABP) is a useful marker in the assessment of damages and inflammation to the small intestinal mucosa. We have investigated the influence of HIV infections and antiretroviral treatment on the small intestine mucosa aided by the evaluation of I-FABP concentration levels. We included in the study: 31 HIV-infected patients with antiretroviral therapy (ART) treatment (T), 32 HIV-infected patients not treated with ART (NT), and 18 healthy volunteers as a control group. The concentrations of I-FABP were measured in serum using a sandwich enzyme immunoassay kit: Human I-FABP. The median level of I-FABP in the serum of HIV-infected patients was 2.10 ± 2.56 ng/mL and did not significantly differ between T and NT (2.32 ± 2.69 ng/mL vs. 1.89 ± 2.45 ng/mL). However, the I-FABP serum level was significantly higher in HIV-infected patients when compared to the group control (2.10 ± 2.56 ng/mL vs. 1.26 ± 1.18 ng/mL; P = 0.048). We recorded a correlation for treated HIV-infected patients between Viral load and I-FABP serum level (r = −0.66; P <0.05). Elevated serum I-FABP level in HIV-infected patients confirm that HIV causes damage to the intestinal mucosa. I-FAB is a useful marker in the assessment of intestinal damage in HIV-infected patients.

In the era of combination antiretroviral therapy (cART), life expectancy of HIV-infected patients is the same as that of the general population, resulting in increasing prevalence of cardiovascular disease in this patient group. To assess the prevalence of endothelial dysfunction in HIV-infected patients and to identify factors which affect endothelial function and arterial stiffness. Thirty-seven adult HIV-infected patients, regardless of the fact and the type of cART, were enrolled into the study. In patient, reactive hyperaemia peripheral arterial tonometry assessment was performed using the Endo-PAT2000 device (ITAMAR®). This method allows evaluation of endothelial function ant arterial stiffness. Final analysis included 37 patients (median age 38 years, range 32-45 years), including 89.2% men. Endothelial dysfunction was found in 13 (35.1%) HIV-infected patients. We found no differences in demographic and clinical characteristics, laboratory data, and cardiovascular drug therapy between patients with or without endothelial dysfunction, except for platelet count which was higher in patients with endothelial dysfunction (174 [119-193] × 10³/mm3 vs. 222 [168-266] × 10³/mm³, p = 0.03). No demographic or clinical variables were identified as predictors of endothelial dysfunction in HIV-infected patients. In addition, no association was found between factors related to HIV infection, chronic drug therapy and the risk of endothelial dysfunction. Statistically significant correlations were found between arterial stiffness and age (rs = 0.53, p < 0.001), red blood cell count (rs = -0.39, p = 0.018), and platelet count (rs = 0.42, p = 0.009). CD4+ and CD8+ lymphocyte count and viral load were similar in patients with or without endothelial dysfunction. Arterial stiffness was significantly higher in patients with higher viral load (rs = -0.39, p = 0.0018) and in those with established AIDS (9.5 [1.0-16.0] vs. -5 [-10-5], p = 0.009). cART had no effect on endothelial dysfunction, while arterial stiffness was higher in patients treated with cART (10 [0-15] vs. -5 [-10-3], p = 0.014). Endothelial dysfunction is common in HIV-infected patients. In general, none of the analysed factors had an effect on endothelial function but cART had a negative effect on arterial stiffness.