The prevalence of adenoviral conjunctivitis at the Clinical Hospital of the State University of Campinas, Brazil

Viral conjunctivitis is a common, highly contagious disease that is often caused by an adenovirus. The aim of this study was to evaluate the prevalence of adenoviral conjunctivitis by analyzing data from a prospective clinical study of 122 consecutively enrolled patients who were treated at the Clinical Hospital of the State University of Campinas (UNICAMP) after a clinical diagnosis of infectious conjunctivitis between November 2011 and June 2012. METHODS: Polymerase chain reaction was used to evaluate all cases of clinically diagnosed infectious conjunctivitis and based on the laboratory findings, the prevalence of adenoviral infections was determined. The incidence of subepithelial corneal infiltrates was also investigated. RESULTS: Of the 122 patients with acute infectious conjunctivitis included, 72 had positive polymerase chain reaction results for adenoviruses and 17 patients developed subepithelial corneal infiltrates (13.93%). CONCLUSIONS: The polymerase chain reaction revealed that the prevalence of adenoviral conjunctivitis was 59% in all patients who presented with a clinical diagnosis of infectious conjunctivitis from November 2011 to June 2012. The prevalence of adenoviral conjunctivitis in the study population was similar to its prevalence in other regions of the world701174875

The prevalence of adenoviral conjunctivitis at the Clinical Hospital of the State University of Campinas, Brazil

OBJECTIVES: Viral conjunctivitis is a common, highly contagious disease that is often caused by an adenovirus. The aim of this study was to evaluate the prevalence of adenoviral conjunctivitis by analyzing data from a prospective clinical study of 122 consecutively enrolled patients who were treated at the Clinical Hospital of the State University of Campinas (UNICAMP) after a clinical diagnosis of infectious conjunctivitis between November 2011 and June 2012. METHODS: Polymerase chain reaction was used to evaluate all cases of clinically diagnosed infectious conjunctivitis and based on the laboratory findings, the prevalence of adenoviral infections was determined. The incidence of subepithelial corneal infiltrates was also investigated. RESULTS: Of the 122 patients with acute infectious conjunctivitis included, 72 had positive polymerase chain reaction results for adenoviruses and 17 patients developed subepithelial corneal infiltrates (13.93%). CONCLUSIONS: The polymerase chain reaction revealed that the prevalence of adenoviral conjunctivitis was 59% in all patients who presented with a clinical diagnosis of infectious conjunctivitis from November 2011 to June 2012. The prevalence of adenoviral conjunctivitis in the study population was similar to its prevalence in other regions of the world

Differential expression of microRNA501-5p affects the aggressiveness of clear cell renal carcinoma

AbstractRenal cell carcinoma is a common neoplasia of the adult kidney that accounts for about 3% of adult malignancies. Clear cell renal carcinoma is the most frequent subtype of kidney cancer and 20–40% of patients develop metastases. The absence of appropriate biomarkers complicates diagnosis and prognosis of this disease. In this regard, small noncoding RNAs (microRNAs), which are mutated in several neoplastic diseases including kidney carcinoma, may be optimal candidates as biomarkers for diagnosis and prognosis of this kind of cancer. Here we show that patients with clear cell kidney carcinoma that express low levels of miR501-5p exhibited a good prognosis compared with patients with unchanged or high levels of this microRNA. Consistently, in kidney carcinoma cells the downregulation of miR501-5p induced an increased caspase-3 activity, p53 expression as well as decreased mTOR activation, leading to stimulation of the apoptotic pathway. Conversely, miR501-5p upregulation enhanced the activity of mTOR and promoted both cell proliferation and survival. These biological processes occurred through p53 inactivation by proteasome degradation in a mechanism involving MDM2-mediated p53 ubiquitination. Our results support a role for miR501-5p in balancing apoptosis and cell survival in clear cell renal carcinoma. In particular, the downregulation of microRNA501-5p promotes a good prognosis, while its upregulation contributes to a poor prognosis, in particular, if associated with p53 and MDM2 overexpression and mTOR activation. Thus, the expression of miR501-5p is a possible biomarker for the prognosis of clear cell renal carcinoma

The Prevalence Of Adenoviral Conjunctivitis At The Clinical Hospital Of The State University Of Campinas, Brazil.

Viral conjunctivitis is a common, highly contagious disease that is often caused by an adenovirus. The aim of this study was to evaluate the prevalence of adenoviral conjunctivitis by analyzing data from a prospective clinical study of 122 consecutively enrolled patients who were treated at the Clinical Hospital of the State University of Campinas (UNICAMP) after a clinical diagnosis of infectious conjunctivitis between November 2011 and June 2012. Polymerase chain reaction was used to evaluate all cases of clinically diagnosed infectious conjunctivitis and based on the laboratory findings, the prevalence of adenoviral infections was determined. The incidence of subepithelial corneal infiltrates was also investigated. Of the 122 patients with acute infectious conjunctivitis included, 72 had positive polymerase chain reaction results for adenoviruses and 17 patients developed subepithelial corneal infiltrates (13.93%). The polymerase chain reaction revealed that the prevalence of adenoviral conjunctivitis was 59% in all patients who presented with a clinical diagnosis of infectious conjunctivitis from November 2011 to June 2012. The prevalence of adenoviral conjunctivitis in the study population was similar to its prevalence in other regions of the world.70748-75

Dexamethasone/povidone eye drops versus artificial tears for treatment of presumed viral conjunctivitis: a randomized clinical trial

To determine whether topical dexamethasone 0.1%/povidone-iodine 0.4% reduces the duration of presumed viral conjunctivitis better than artificial tears and whether the treatment relieves the symptoms of this disease. Randomized, masked and controlled trial. One-hundred twenty-two patients with a clinical diagnosis of presumed viral conjunctivitis were randomized to either the treatment group or the control group. Physicians and patients were masked to the treatment. Swabs were taken from the conjunctival fornix for adenovirus PCR analyses. Patients in the treatment group received topical dexamethasone 0.1%/povidone-iodine 0.4% eye drops four times daily, and patients in the placebo group received artificial tears four times daily, both for seven days. Symptoms were recorded on the day of recruitment and at the time of a follow-up examination 5, 10 and 30 d later. The main outcome was duration of the disease. The others outcomes were overall discomfort, itching, foreign body sensation, tearing, redness, eyelid swelling, side effects of the eye drops, intraocular pressure and the incidence of subepithelial corneal infiltrates. There was no statistically significant difference between the treatment group and the control group in terms of the patients' symptoms, intraocular pressure and incidence of subepithelial cornea infiltrates during the entire follow-up period. Patients of the treatment group reported more stinging (p<0.001) and a shorter conjunctivitis duration (9.4 +/- 4.6 d in the dexamethasone 0.1%/povidone-iodine 0.4% group versus 11.8 +/- 4.9 d in the artificial tears group, p = 0.009). The use of topical dexamethasone 0.1%/povidone-iodine 0.4% eye drops four times daily appears to reduce the duration of conjunctivitis, although it causes more stinging than artificial tears409870877Ophthalmos S/A, Sao Paulo, Brazi