COVID-19 vaccination during pregnancy is safe and effective in reducing the risk of complications. However, the uptake is still below targets worldwide. This study aimed to explore the factors associated with COVID-19 vaccination uptake among pregnant women since data on this topic is scarce in low-to-middle-income countries.
View Article and Find Full Text PDFInt J Retina Vitreous
September 2022
Purpose: To describe chorioretinal signs in a case series of Giant Cell Arteritis (GCA).
Methods: This is a multicenter retrospective observational case series with GCA that presented with a headache and an abrupt, unilateral loss in vision. Workup included temporal artery biopsies, intravenous fluorescein angiography, optical coherence tomography (OCT), optical coherence tomography angiography (OCTA), blood levels of erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP).
Hansen's disease (HD) belongs to the group of neglected diseases and can cause physical deformities and disabilities, in addition to leading to social discrimination. Ocular involvement in HD is estimated at 70-75% worldwide. About 10-50% suffer from severe ocular symptoms and loss of vision occurs in approximately 5% of cases.
View Article and Find Full Text PDFDengue, yellow fever, Zika, and chikungunya arboviruses are endemic in tropical countries and are transmitted by Aedes aegypti. Resistant populations of this mosquito against chemical insecticides are spreading worldwide. This study aimed to evaluate the biological effects of exposure of pesticide-sensitive Ae.
View Article and Find Full Text PDFObjective: The purpose of this study was to investigate the effects of neuromuscular electrical stimulation (NMES) in different frequencies on the quadriceps femoris. A randomized, controlled, blind cross-sectional study.
Methods: Thirty subjects (12 men and 18 women), with an average age of 24.
Monolithic restorations of Y-TZP have been recommended as a restorative alternative on prosthetic dentistry as it allows a substantial reduction of ceramic thickness, which means a greater preservation of tooth structure. However, the influence of grinding and aging when using a thinner layer of the material is unclear. This investigation aimed to evaluate and compare the effects of ceramic thickness (0.
View Article and Find Full Text PDFPurpose: To evaluate the ocular axial length (AL) and keratometry (K) in Brazilian children with congenital/developmental cataract, assess the differences and evolution of AL and K according to age, and establish functional models of AL and K as function of age.
Methods: Children with congenital/developmental cataract aged 1.5 months old to 8 years old and no other ocular diseases were included.
J Oral Maxillofac Surg
August 2014
Purpose: The aim of the present study was to compare panoramic radiography and cone beam computed tomography (CBCT) for the assessment of external root resorption (ERR) of second molars associated with impacted third molars. In addition, the prevalence of ERR in second molars and the inclinations of the third molars more associated with ERR were investigated in both imaging methods.
Materials And Methods: The sample consisted of 66 individuals with maxillary and mandibular impacted third molars (n = 188) seen on panoramic radiographs and CBCT images.
Purpose: To describe the implantation of the red reflex test in 30 cities in the area of Botucatu Medical School Clinical Hospital, (480,337 inhabitants) and the creation of a reference Center for children with red reflex changes, the Red reflex screening and another Center for treatment of childhood cataract.
Methods: The red reflex exam was released in 30 cities of the surrounding Botucatu area, lectures were done in the cities invited to participate by the Regional Department of Health.109 pen torch ophthalmoscopes were distributed to the hospital maternities and primary care units.
Objective: This study aimed to investigate the effect of 830 and 670 nm diode laser on the viability of random skin flaps in rats.
Background Data: Low-level laser therapy (LLLT) has been reported to be successful in stimulating the formation of new blood vessels and reducing the inflammatory process after injury. However, the efficiency of such treatment remains uncertain, and there is also some controversy regarding the efficacy of different wavelengths currently on the market.
Objective: Assess the occurrence of secondary brow ptosis after upper lid blepharoplasty.
Methods: Forty-five individuals (n = 90 brows) submitted to upper lid blepharoplasty, were assessed by means of a comparative analysis using pre- and post-operatively digital photographs, in the primary position of the eye. The images were processed using ImageJ "software", transferred to a computer, to an electronic Microsoft Excel 2002(®) worksheet.
Purpose: The study is a prospective case-series analysis to demonstrate a new double bundle technique for anterior cruciate ligament (ACL) reconstruction with the use of hamstring tendons through a single tibial tunnel, a double femoral socket with implant-free femoral fixation and interference screw for tibial fixation.
Materials And Methods: Twenty-one patients were treated with the same technique. Hamstring tendons were not removed from the tibial side, and using a single tibial and a double femoral tunnel of 8 and 6 mm, respectively, anatomic ACL reconstruction was performed.
Objective: The purpose of this study was to evaluate the effect of 830-nm laser in blocking the action of nicotine on the viability of skin flap.
Background Data: The authors have analyzed the deleterious effect of cigarette smoke or nicotine on the skin flap alone with evidence of increased skin necrosis in the flap.
Materials And Methods: Twenty-four Wistar-albino rats were divided into three groups of eight animals each: Group 1 (control), subjected to a surgical technique to obtain a flap for cranial base, laser irradiation simulation, and a subcutaneous injection of saline; Group 2, similar to Group 1, with subcutaneous injection of nicotine (2 mg/kg/day) for a period of 1 week before and 1 week after surgery; and Group 3, similar to Group 2, with skin flaps subjected to a λ 830-nm laser irradiation.
Objective: The aim of this study was to assess the effects of 830 and 670 nm laser on malondialdehyde (MDA) concentration in random skin-flap survival.
Background Data: Low-level laser therapy (LLLT) has been reported to be successful in stimulating the formation of new blood vessels and activating superoxide-dismutase delivery, thus helping the inhibition of free-radical action and consequently reducing necrosis.
Materials And Methods: Thirty Wistar rats were used and divided into three groups, with 10 rats in each one.
Objective: This study aimed to investigate the effect of diode laser (830 nm) irradiation on the viability of ischemic random skin flaps in rats, as well as to determine the most effective site for applying laser radiation to speed healing.
Background Data: Low-level laser therapy (LLLT) has recently been used to improve the viability of ischemic random skin flaps in rats.
Materials And Methods: Seventy Wistar rats were used and divided into seven groups of 10 rats each: group 1, sham laser treatment; group 2, which received irradiation at 1 point 5 cm from the flap's cranial base; group 3, which received irradiation at 2 points (5 and 7.
Purpose: To develop an experimental model to be used in the study of low level Laser therapy on viability of random skin flap in rats.
Methods: The sample was 24 Wistar-EPM rats. The random skin flap measured 10 x 4 cm and a plastic sheet was interposed between the flap and donor site.
Cancer Detect Prev
December 2005
Objective: To demonstrate that an effective cervical cancer screening programme based on the Papanicolaou (Pap) smear can be organized in a middle-income country, such as Chile.
Methods: The cervical cytology screening programme in Chile is evaluated by comparing process measures and cervical cancer mortality before and after its reorganization in 1987.
Findings: Two decades of opportunistic annual screening for cervical cancer from the mid-1960s to the mid-1980s did not reduce cervical cancer mortality in Chile.
Cancer Epidemiol Biomarkers Prev
December 2004
Unlabelled: More than 18 types of human papillomavirus (HPV) are associated with cervical cancer, the relative importance of the HPV types may vary in different populations.
Objective: To investigate the types of HPV, age distribution, and risk factors for HPV infection in women from Santiago, Chile.
Methods: We interviewed and obtained two cervical specimens from a population-based random sample of 1,038 sexually active women (age range, 15-69 years).
Storey et al. (1998) implicated the proline/argine polymorphism of the codon 72 of the tumor-suppressor gene p53 in the development of cervical cancer (CC) with the observation that the p53 protein is more efficiently inactivated by the E6 oncoprotein of human papillomavirus in p53 arginine as compared with its proline isoform. These authors further noted that in the United Kingdom, individuals homozygous for the arginine allele were several times more susceptible to HPV-associated tumorigenesis that proline/arginine heterozygotes.
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