Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 18 de 18
Filtrar
Más filtros












Base de datos
Intervalo de año de publicación
1.
Eur J Ophthalmol ; 34(2): 497-501, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37455446

RESUMEN

PURPOSE: To test reliability and reproducibility of ESASO morphologic OCT-based classification of diabetic maculopathy (DM). METHODS: This is a multi-center cross-sectional study including a coordination center (CC) and 18 participating centers (PCs). After instruction on the correct use of ESASO Classification, the validation process was carried out in two consecutive stages. In the first retrospective phase, we evaluated the concordance between PCs and CC in the staging of OCT images collected during PCs' daily activity (608 images). In a second prospective phase, we analyzed the inter-observer agreement of staging assigned by each PCs to OCT images selected by the CC (22 images). RESULTS: The overall concordance achieved in the retrospective phase was 89.8% (Kappa = 0.83 (95% CI: 0.78-0.87); p<0.0001). In 99.5% of cases, concordance did not differ by more than one stage. In the prospective phase, PCs reached an inter-operator agreement of 93.0% (Krippendorff's Alpha = 0.953, 95% CI: 0.929-0.977, p<0.0001). Any discrepancy among the 22 images was within one stage. CONCLUSION: The results achieved in this study confirm that ESASO OCT-based Classification can be considered as an easy and reproducible method to stage DM during clinical practice. A diffused use of a common and validated method to describe the progression of retinal damage in DM may offer several clinical and scientific advantages.


Asunto(s)
Diabetes Mellitus , Retinopatía Diabética , Degeneración Macular , Humanos , Reproducibilidad de los Resultados , Estudios Transversales , Estudios Retrospectivos , Estudios Prospectivos , Retinopatía Diabética/diagnóstico , Tomografía de Coherencia Óptica/métodos
3.
J Clin Med ; 12(18)2023 Sep 12.
Artículo en Inglés | MEDLINE | ID: mdl-37762862

RESUMEN

In spite of the widespread use of lifestyle modifications programs, many patients with PCOS are obese and prevalence of obesity in PCOS remains high. In this study, we present the data on the use of semaglutide, an incretin mimetic drug, in obese PCOS patients who were unresponsive to a lifestyle modification program. Twenty-seven obese patients with a diagnosis of PCOS, who did not reduce their body weight by a lifestyle modification program, were included in this study and treated by semaglutide, 0.5 mg subcutaneously once a week. After three months of treatment, an improvement in body weight with a mean decrease in body weight of 7.6 kg and a mean BMI loss of 3.1 was observed, while very few side effects were reported. Almost 80% of the studied obese PCOS patients obtained at least a 5% decrease in their body weight. Only a few patients (22%) obtained a decrease in body weight lower than 5% and were considered non-responsive to semaglutide, at least at the used doses. These patients presented a more severe obesity than responsive patients. Independently of results on body weight, and in patients who did not obtain a 5% decrease in their body weight, insulin basal values decreased, and HOMA-IR improved. Fasting blood glucose normalized in 80% of semaglutide-treated IFG PCOS women. In patients who were responsive to semaglutide (weight loss > 5%), the treatment was continued for additional three months. Weight loss slowed but continued and, at the end of the six months of therapy, the mean body weight loss was 11.5 kg and mean BMI reduced from 34.4 to 29.4. A total of 80% of responsive patients normalized menstrual cycles. In conclusion, treatment with semaglutide, at low doses, significantly reduces body weight in almost 80% of obese PCOS patients who were unresponsive to a previous lifestyle plan. It is often associated with the normalization of menstrual cycles, and these important results are obtained with very few side effects.

4.
J Refract Surg ; 39(7): 499-504, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37449508

RESUMEN

PURPOSE: To evaluate corneal biomechanical changes after meniscus-shaped stromal lenticule addition keratoplasty (MS-SLAK) performed for the treatment of keratoconus. METHODS: This interventional study included patients affected by advanced keratoconus (stage III and IV) who underwent examination with a dynamic Scheimpflug analyzer and non-contact tonometer (Corvis ST; Oculus Optikgeräte GmbH) at baseline and 12 months after MS-SLAK. The biomechanical parameters evaluated in this study were integrated inverse radius (1/R), deformation amplitude ratio (DA ratio), stiffness parameter at first applanation (SP-A1), biomechanical intraocular pressure (bIOP), central corneal thickness (CCT), and stress-strain index (SSI). RESULTS: Sixteen patients were enrolled in the study. The analysis was ultimately conducted on 15 patients. Comparative analyses showed an increase in corneal stiffness as demonstrated by a rise in SSI (P < .0001) and SP-A1 (P < .0001) and a decrease in DA ratio (P < .0001) and 1/R (P = .01). A significant increase in CCT was found (P < .0001). No statistically significant modification was found for bIOP (P = .43). CONCLUSIONS: The corneal biomechanical analyses evaluated by the Corvis ST showed that MS-SLAK for advanced keratoconus is able to increase corneal overall stiffness. This result is explained by the significant increase in thickness induced by MS-SLAK. [J Refract Surg. 2023;39(7):499-504.].


Asunto(s)
Trasplante de Córnea , Queratocono , Humanos , Queratocono/cirugía , Queratocono/diagnóstico , Topografía de la Córnea , Córnea , Tonometría Ocular , Presión Intraocular , Fenómenos Biomecánicos
5.
J Refract Surg ; 39(1): 33-39, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36630438

RESUMEN

PURPOSE: To evaluate the astigmatism tolerance and the visual outcomes after implantation of a premium intraocular lens (IOL) with a continuous transitional focus (Precizon Presbyopic; Ophtec BV) in pseudophakic presbyopia correction. METHODS: This prospective study enrolled 20 patients (40 eyes) after bilateral phacoemulsification and IOL implantation. Corrected and uncorrected visual acuities at 4 m and 80, 67, and 40 cm (CDVA, UDVA, DCI80VA, UI80VA, DCI67VA, UI67VA, DCNVA, and UNVA), astigmatic and spheric defocus curve, mean reading speed (MRS), critical print size (CPS), contrast sensitivity, optical aberrations (modulation transfer function [MTF] cut-off, Strehl ratio, and higher order aberration root mean square [HOA RMS]), objective halometry, and National Eye Institute Refractive Error Quality of Life Instrument 42 [NEI RQL-42] questionnaire were evaluated 3 months after surgery. RESULTS: Astigmatic defocus curves revealed a tolerance up to -1.00 and +0.75 diopters (D) for with-the-rule astigmatism, and up to -1.00 and +1.00 D for against-the-rule astigmatism. Binocular spheric defocus curve showed that the mean visual acuity was greater than 0.15 logMAR from 1.00 to -1.00 D. MRS, CPS, MTF cut-off, Strehl ratio, and HOA RMS were 116.97 ± 21.94 words/min, 0.45 ± 0.06 logRDA, 20.03 ± 4.86 cycles/degree, 0.11 ± 0.07, and 0.28 ± 0.09, respectively. Contrast sensitivity was within the normal range for all tested light conditions. The NEI RQL-42 evidenced high subjective satisfaction for all subscales, especially for far vision, activity limitations, dependence on correction, suboptimal correction, appearance, and satisfaction with correction. CONCLUSIONS: The Precizon Presbyopic IOL allows good astigmatism tolerance and both objective and subjective high quality of vision. [J Refract Surg. 2023;39(1):33-39.].


Asunto(s)
Astigmatismo , Lentes Intraoculares , Facoemulsificación , Humanos , Implantación de Lentes Intraoculares , Astigmatismo/cirugía , Calidad de Vida , Estudios Prospectivos , Refracción Ocular , Diseño de Prótesis , Visión Binocular
6.
Cells ; 11(20)2022 10 17.
Artículo en Inglés | MEDLINE | ID: mdl-36291122

RESUMEN

It is well known that a subgroup of women with PCOS present an excessive adrenal androgen production, generally associated with ovarian hyperandrogenism. In the past, it has been impossible to correlate adrenal hyperandrogenism to any clinical or hormonal pattern of PCOS. However, adrenal androgens are strictly dependent on age and their blood values reduce by 40% in patients moving from their twenties to thirties. Due to this, serum DHEAS values are strongly influenced by the age distribution of studied populations. To avoid this bias, in this study we retrospectively analyzed the clinical and hormonal data of PCOS women in their twenties (age between 20 and 29 years). Data of 648 young hyperandrogenic women with PCOS were evaluated. Serum DHEAS was increased in a third (33%) of studied patients and was associated with higher values of testosterone (T) and androstenedione (A). In each phenotype, patients with high DHEAS had higher values of T and A than patients with normal DHEAS of the same phenotype. Therefore, a DHEAS increase is generally part of a generalized higher androgen production in a subgroup of PCOS patients, independently of the finding of anovulatory or ovulatory cycles or of polycystic or normal ovaries. However, our study showed some important differences between PCOS phenotypes. A lower prevalence of increased DHEAS in A phenotype PCOS patients who generally have the highest androgen levels, versus non-classic (B or C) PCOS phenotypes, was observed. It was also found that patients with A phenotype PCOS present significantly lower BMI and serum insulin than patients with normal DHEAS of the same phenotype while, in patients with the B or C phenotype, the opposite occurs. We conclude that adrenal hyperandrogenism is more common in patients with non-classic (B and C) phenotypes of PCOS and is generally part of a generalized higher production of androgens in a subgroup of PCOS patients. However, other factors may increase the adrenal androgen production and influence the clinical expression of the syndrome. More studies in large, selected for age, populations of PCOS women with different phenotypes are needed.


Asunto(s)
Hiperandrogenismo , Insulinas , Síndrome del Ovario Poliquístico , Humanos , Femenino , Hiperandrogenismo/epidemiología , Hiperandrogenismo/genética , Andrógenos/metabolismo , Síndrome del Ovario Poliquístico/metabolismo , Estudios Retrospectivos , Androstenodiona , Prevalencia , Sulfato de Deshidroepiandrosterona/metabolismo , Deshidroepiandrosterona , Testosterona/metabolismo , Fenotipo , Insulinas/genética
7.
Sci Rep ; 12(1): 11675, 2022 07 08.
Artículo en Inglés | MEDLINE | ID: mdl-35803970

RESUMEN

This study investigates the impact of antenatal and postnatal infection or inflammation on the onset and progression of Retinopathy of Prematurity (ROP). We retrospectively collected clinical and demographic data of preterm infants with birth weight ≤ 1500 g or gestational age < 30 weeks admitted to the neonatal intensive care unit of Verona from 2015 to 2019. Uni- and multivariable analysis was performed to evaluate the potential effect of selected variables on the occurrence of any stage ROP and its progression to severe ROP, defined as ROP requiring treatment. Two hundred and eighty neonates were enrolled and 60 of them developed ROP (21.4%). Oxygen need for 28 days and late-onset sepsis (LOS) increased the risk of any grade ROP after adjusting for birth weight and gestational age (OR 6.35, 95% CI 2.14-18.85 and OR 2.49, 95% CI 1.04-5.94, respectively). Days of mechanical ventilation and of non-invasive ventilation increased the risk of progression to severe ROP after adjusting for birth weight and gestational age (OR 1.08, CI 1.02-1.14 and OR 1.06, CI 1.01-1.11, respectively). Exposure to infection with production of inflammatory mediators may contribute to increase the risk of ROP occurrence in very preterm neonates.


Asunto(s)
Retinopatía de la Prematuridad , Sepsis , Peso al Nacer , Femenino , Edad Gestacional , Humanos , Lactante , Recién Nacido , Recien Nacido Prematuro , Embarazo , Retinopatía de la Prematuridad/epidemiología , Retinopatía de la Prematuridad/terapia , Estudios Retrospectivos , Factores de Riesgo , Sepsis/complicaciones , Sepsis/epidemiología
8.
Antibiotics (Basel) ; 11(5)2022 Apr 22.
Artículo en Inglés | MEDLINE | ID: mdl-35625205

RESUMEN

Ocular surgery encompasses a wide range of procedures, including surgery of the tear ducts, eyelid, cornea and conjunctiva, lens, ocular muscle, and vitreoretinal and iris surgery. Operations are also performed for the removal of tumors, repairs of ocular trauma and, finally, corneal transplantation. Antibiotic prophylaxis for the prevention of surgical site infections (SSIs) in ocular surgery is a complex field in which shared lines of action are absent. In light of the scarcity of shared evidence in the use of ocular antimicrobial prophylaxis for the pediatric population, this consensus document aims to provide clinicians with a series of recommendations on antimicrobial prophylaxis for patients of neonatal and pediatric age undergoing eye surgery. The following scenarios are considered: (1) intraocular surgery; (2) extraocular surgery; (3) ocular trauma; (4) ocular neoplasm; (5) ocular surface transplantations; (6) corneal grafts. This work has been made possible by the multidisciplinary contribution of experts belonging to the most important Italian scientific societies and represents, in our opinion, the most complete and up-to-date collection of recommendations regarding clinical actions in the peri-operative environment in eye surgery. The application of uniform and shared protocols aims to improve surgical practice, through the standardization of procedures, with a consequent reduction of SSIs, also limiting the phenomenon of antimicrobial resistance.

9.
Int Ophthalmol ; 42(9): 2881-2887, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-35430683

RESUMEN

PURPOSE: To summarize the actions taken to give continuity to the surgical treatment of glaucoma patients and to present the volume and characteristics of glaucoma surgery in the first year of pandemic at the Tertiary Glaucoma Center of the University Hospital of Verona (Veneto, Italy). METHODS: Demographical and surgical features of patients who underwent glaucoma surgery from March 9th, 2020 to March 8th, 2021 have been collected and compared to the same date range of the previous year. The analyzed data included age, gender, region of origin, glaucoma staging, type of anesthesia and surgical procedure. RESULTS: The surgical volume of glaucoma has dropped by 30.1%. In comparison with the previous year, we found a significant variation in the overall distribution of the performed surgical procedures (p < 0.001). There was a decline in Baerveldt tube implants (- 4.9%), and an increase of non-penetrating surgery (+ 2.6%), cyclo-photo ablative procedures (+ 4.2%) and MIGS (+ 5.7%). Only 24.3% of the procedures were performed under general anesthesia compared to 41.5% in the pre-pandemic period (p < 0.001). The number of procedures performed on eyes affected by advanced or end-stage glaucoma is doubled (p < 0.001). CONCLUSIONS: To give continuity to glaucoma surgery, we prioritized interventions on patients with poorer visual fields, rapidly progressing visual field deficit and elevated IOP uncontrolled by maximal medical therapy. Secondly, we have rescheduled the other interventions following the same priority criteria. Finally, we managed some lower priority cases with MIGS, minimizing the need for close post-intervention follow-up. Considering the negative consequences that a delay in the management of glaucoma can have in terms of visual loss, the closure of the operating rooms in the first quarter of the pandemic was detrimental. It appears that glaucoma surgery deserves urgencies that cannot be overshadowed and the greatest effort must be to give continuity to this type of eye surgery.


Asunto(s)
COVID-19 , Implantes de Drenaje de Glaucoma , Glaucoma , Estudios de Seguimiento , Humanos , Presión Intraocular , Pandemias , Estudios Retrospectivos , Resultado del Tratamiento
10.
Int Ophthalmol ; 42(4): 1281-1287, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-34738205

RESUMEN

PURPOSE: The relation between OSAS and eye diseases is well known in adults, while very few and contradictory data can be found regarding paediatric ages. The aim of this study is to explore the early corneal, macular and optic nerve changes in paediatric patients with OSAS. METHODS: Prospective study that enrolled children aged ≥ 4 years referred to the Paediatric Pneumology Clinic in Verona for suspected obstructive sleep apnoea syndrome (OSAS) and investigated with the overnight respiratory polygraphy. Patients with apnoea-hypopnea index (AHI) > 1 were classified as OSAS, while those with AHI < 1 were classified non-OSAS. All patients underwent comprehensive eye examination including slit lamp, refraction, intraocular pression (Goldman applanation tonometry), corneal tomography (corneal astigmatism, corneal keratometry at the apex, surface asymmetry index, central corneal thickness and thinnest corneal thickness) and optical coherence tomography (central macular thickness, macular volume and retinal nerve fibre layer). RESULTS: Seventy-two children were enrolled in the study. The overall prevalence of OSAS was 48.6%. Statistically significant differences were found between OSAS and non-OSAS group for corneal asymmetry (0.9 ± 0.5 and 0.6 ± 0.3, respectively; p = 0.02), thinnest corneal thickness (551.8 ± 33.9 and 563.7 ± 32.5; p = 0.04), average retinal nerve fibre layer (102.8 ± 10.5 µm and 98.1 ± 12.3 µm; p = 0.012) and in nasal quadrant (76.2 ± 15.4 µm and 66.5 ± 12.6 µm; p = 0.0002). CONCLUSIONS: A comprehensive eye examination with corneal and optic nerve imaging showed early corneal and optic nerve changes in children newly diagnosed with OSAS. These could be prelude of the known ocular manifestations associated with OSAS in adult patients.


Asunto(s)
Fibras Nerviosas , Apnea Obstructiva del Sueño , Adulto , Niño , Humanos , Nervio Óptico , Estudios Prospectivos , Células Ganglionares de la Retina , Apnea Obstructiva del Sueño/complicaciones , Apnea Obstructiva del Sueño/diagnóstico , Apnea Obstructiva del Sueño/epidemiología , Tomografía de Coherencia Óptica/métodos
11.
Ital J Pediatr ; 47(1): 217, 2021 Nov 04.
Artículo en Inglés | MEDLINE | ID: mdl-34736495

RESUMEN

BACKGROUND: We investigated the volume and the characteristics of pediatric eye emergency department (PEED) consultations performed at our tertiary eye center during the early months of the COVID-19 pandemic and we compared them to those carried out in the same time interval of the previous three years. METHODS: Ophthalmic emergency examinations of patients aged ≤18 years old and done during the national COVID-19 lockdown (March 9th, 2020 - May 3rd, 2020) and in the corresponding date range of the previous three years (2017, 2018, and 2019) have been considered and reviewed. The following features were retrieved and analyzed: age, gender, duration and type of accused symptoms, traumatic etiology, and the discharge diagnosis. RESULTS: 136, 133, and 154 PEED visits have been performed respectively in 2017, 2018, and 2019, while 29 patients presented in 2020. Therefore, the volume of PEED activity decreased by 79.4% (p < 0.0001). Demographical and clinical characteristics were comparable to those of the pre-COVID period. Despite the absolute reduction in the number of traumas, urgent conditions increased significantly from 30.7 to 50.7% (p = 0.024). CONCLUSIONS: PEED activity decreased consistently after the onset of the pandemic and it was mainly attended by those children whose conditions required prompt assistance, reducing the number of patients diagnosed with milder pathologies. At the end of the emergency, better use of PEED could avoid overcrowding and minimize waste, allowing resource optimization for the management of urgent cases.


Asunto(s)
COVID-19/epidemiología , Servicio de Urgencia en Hospital/estadística & datos numéricos , Oftalmopatías/epidemiología , Factores de Edad , COVID-19/prevención & control , COVID-19/transmisión , Niño , Preescolar , Control de Enfermedades Transmisibles , Urgencias Médicas , Oftalmopatías/diagnóstico , Oftalmopatías/terapia , Utilización de Instalaciones y Servicios , Femenino , Humanos , Lactante , Recién Nacido , Masculino , Estudios Retrospectivos
12.
Int Ophthalmol ; 41(11): 3861-3867, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34297306

RESUMEN

PURPOSE: To assess the long-term visual outcomes of children with PCG, irrespective of the type of surgical procedure, and to create visual acuity curves to help in predicting the development of visual function in these patients. The secondary aim is to identify associated factors for visual decline or loss, highlighting differences between neonatal and infantile subgroups. METHODS: The medical records of pediatric glaucoma patients from 1996 to 2017 at the University Hospital of Verona (Verona, Italy) were retrospectively reviewed. Visual acuities, surgeries, PCG subtype and etiology of vision impairment were recorded. Statistical analyses were performed to detect factors associated with vision decline. RESULTS: Sixty-seven eyes (40 patients) were included in the study. Developmental predictive curves of visual acuity showed that children with infantile PCG had a better visual outcome than children with neonatal PCG at each step of follow-up. A good-to-moderate VA (< 1 LogMAR) was achieved in 56 eyes (83.6%), while 11 eyes (16.4%) had poor VA (≥ 1 LogMAR). The age at onset, sex, number of surgeries, intraocular pressure (IOP) control (with or without antiglaucoma drugs), axial length (AL) and corneal opacities were statistically associated with vision impairment (p < 0.01). The main cause of visual impairment was amblyopia. CONCLUSIONS: Visual outcomes of PCG significantly correlate with the age at diagnosis. Although a good long-term IOP control can often be achieved in PCG, often the visual acuity remains below the lower limits of the normal range. Poor vision in childhood is related to global developmental problems, and referral to third-level services should not be delayed to prevent vision impairment. In this regard, visual acuity curves can be a useful tool for the consultant ophthalmologist to define the visual development of children affected by PCG.


Asunto(s)
Glaucoma , Trabeculectomía , Niño , Estudios de Seguimiento , Glaucoma/cirugía , Humanos , Recién Nacido , Presión Intraocular , Estudios Retrospectivos , Tonometría Ocular , Resultado del Tratamiento
13.
Clin Ophthalmol ; 15: 2127-2131, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34054291

RESUMEN

PURPOSE: To compare the incidence and clinical characteristics of retinal detachments (RDs) diagnosed in a tertiary eye emergency department (EED) during the COVID-19 pandemic and in the corresponding period of the previous 4 years. METHODS: EED consultations performed from February 21, 2020 (first national case of COVID-19 infection) to May 3, 2020 (end of lockdown imposed by national Government) and for the same date range of 2016-2019 (pre-COVID-19 period), and with a confirmed diagnosis of RD were collected and reviewed. The following demographical and clinical features have been analyzed: age, gender, etiology of RD, macular involvement, best corrected visual acuity (BCVA), and duration of experienced symptoms. RESULTS: Eighty-two subjects (20.5±1.0 eyes/year) were diagnosed with RD in the pre-COVID-19 period, compared to 12 patients in the COVID-19 period (-41.5%). During the pandemic, patients complained symptoms for a median of 8.5 days (IQR, 1.7-15 days) before the EED consultation, while in the pre-COVID-19 period, they declared they had been symptomatic for 2 days (IQR, 1-4 days) (p=0.037); macula-off RD raised from 56% to 75% and no one reported trauma as a triggering event. CONCLUSION: During the COVID-19 pandemic, the rate of RD diagnosed in our EED decreased significantly and patients waited longer before asking for an ophthalmologic examination. These findings are probably due to the fear of contracting the COVID-19 infection attending hospital environments. Even if emergency departments are often misused by people suffering non-urgent conditions, patients complaining of sudden visual loss, visual field defects, or phosphenes should always and promptly attend an EED visit to prevent a worse prognosis.

14.
Invest Ophthalmol Vis Sci ; 59(5): 2024-2031, 2018 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-29677365

RESUMEN

Purpose: We characterize age-associated alterations in the expression of inflammatory mediators and tissue remodeling factors in human tears. Methods: A total of 75 consecutive volunteers (32 male/44 female; 19-93 years) underwent clinical assessment of ocular surface status, ocular surface disease index (OSDI) grading and tear sampling. The volunteers were categorized into three groups: young (18-40 years), middle-aged (41-60 years), and old (>60 years). Total protein profiles and chip-based protein array evaluations were conducted to investigate the expression of 60 potential candidates, including pro-/anti-inflammatory mediators and tissue remodeling factors. Appropriate validations were performed using conventional assays. Multiple comparisons for regression between potential candidates and age were performed, as well as statistical analyses among the three age groups. Nonpooled samples were used for quantifications. Results: Pearson analysis of chip-arrays identified 9 of 60 potential candidates. Specifically, IL-8, IL-6, and regulated on activation, normal T cell expressed and secreted (RANTES; P < 0.0083) protein as well as matrix metalloproteinase (MMP)-1, IL-3, and TNF-α (P < 0.05) correlated positively with aging. MIP-3ß showed an opposite tendency. Western blot and ELISA analysis corroborated the array data. OSDI grading did not correlate with aging. Conclusions: Dynamic changes to tear protein profiles occur with aging. Our study identifies the expression of IL-8, IL-6, RANTES, MMP-1, and MIP-3ß as increasing with age. These select inflammatory and matrix remodeling factors may be relevant to the development of novel diagnostic tools and therapeutics in the context of age-related ocular surface disease.


Asunto(s)
Envejecimiento/fisiología , Proteínas del Ojo/metabolismo , Lágrimas/metabolismo , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Western Blotting , Ensayo de Inmunoadsorción Enzimática , Femenino , Humanos , Masculino , Persona de Mediana Edad , Encuestas y Cuestionarios , Adulto Joven
15.
Curr Pharm Des ; 22(36): 5508-5514, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27510475

RESUMEN

While the Rotterdam criteria look simple and easy to follow, in clinical practice diagnosis of PCOS may be problematic because of the use of inaccurate commercial androgen assays. Progresses in ovarian ultrasound and in AMH measurement have modified the way to make the diagnosis of PCOS and an update of Rotterdam criteria may be necessary. In classic severe form of PCOS, ovarian follicle count is a very reliable diagnostic criterion but AMH measurement may also present high diagnostic specificity and sensitivity. This finding is particularly important when no clinical signs of androgen excess are present and only commercial assays for androgen measurement are available. At the contrary, in mild PCOS phenotypes, sensitivity of AMH measurement is too low whileFNPO count maintains a high diagnostic sensitivity. However, at least in ovulatory hyperandrogenic PCOS phenotype, increased AMH values in association with enlarged ovarian size permit the diagnosis of ovulatory PCOS in 85% of these patients. Treatment of PCOS women has to be directed to get fertility or in patients not seeking fertility to solve or attenuate the psychological implications of androgen excess and of irregular menses and the risk of endometrial hyperplasia. The therapeutic protocols that are used in our department are presented.


Asunto(s)
Síndrome del Ovario Poliquístico/diagnóstico , Síndrome del Ovario Poliquístico/tratamiento farmacológico , Femenino , Humanos
16.
Fertil Steril ; 94(6): 2197-201, 2010 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-20303485

RESUMEN

OBJECTIVE: To evaluate the clinical and endocrine differences between main polycystic ovary syndrome (PCOS) phenotypes. DESIGN: To evaluate clinical and hormone parameters in a large group of consecutive women with PCOS diagnosed according Rotterdam criteria and divided according their phenotype. SETTING: University department of medicine. PATIENT(S): Three hundred eighty-two consecutive women with PCOS and 85 ovulatory controls. INTERVENTION(S): Evaluation of clinical and hormone parameters. MAIN OUTCOME MEASURE(S): Blood levels of gonadotropins, testosterone, sex-hormone-binding globulin, dehydroepiandrosterone sulfate, 17α-hydroxyprogesterone, progesterone, glucose, and insulin, and calculation of the free androgen index and insulin sensitivity. RESULT(S): The severe PCOS phenotype (hyperandrogenism, chronic anovulation, and polycystic ovaries: type I classic PCOS) was the most common phenotype in 53.9% of the patients. The phenotype of 8.9% of patients was characterized by hyperandrogenism and chronic anovulation but normal ovaries (type II classic PCOS). The two phenotypes of classic PCOS had similar clinical and endocrine characteristics, but the patients with polycystic ovaries had a higher luteinizing hormone/follicle-stimulating hormone (LH/FSH) ratio. Ovulatory PCOS was relatively common (28.8% of PCOS patients) and presented milder clinical and endocrine alterations than the classic PCOS phenotypes. The normoandrogenic phenotype was relatively uncommon. These patients had a normal body mass index, insulin sensitivity, and free androgen index but showed increased levels of LH and LH/FSH ratio. CONCLUSION(S): Ovulatory PCOS represents the mild form of classic PCOS, but the normoandrogenic phenotype, although part of the spectrum, may represent a different disorder or have a different pathogenetic pathway.


Asunto(s)
Sistema Endocrino/fisiopatología , Síndrome del Ovario Poliquístico/clasificación , Síndrome del Ovario Poliquístico/fisiopatología , Adulto , Andrógenos/sangre , Estudios de Casos y Controles , Sulfato de Deshidroepiandrosterona/sangre , Sistema Endocrino/metabolismo , Femenino , Hormona Folículo Estimulante/sangre , Humanos , Hiperandrogenismo/sangre , Hiperandrogenismo/diagnóstico , Hiperandrogenismo/patología , Hormona Luteinizante/sangre , Fenotipo , Síndrome del Ovario Poliquístico/diagnóstico , Síndrome del Ovario Poliquístico/epidemiología , Prevalencia , Estudios Retrospectivos , Globulina de Unión a Hormona Sexual/análisis , Adulto Joven
17.
Fertil Steril ; 91(5): 1853-6, 2009 May.
Artículo en Inglés | MEDLINE | ID: mdl-18455164

RESUMEN

OBJECTIVE: To evaluate the role of social and cultural differences inside the same ethnic group on the ovulatory status of women with polycystic ovary syndrome (PCOS). DESIGN: To correlate social and cultural status with the phenotypic expression (body weight and ovulation) and with androgen and insulin levels of PCOS. SETTING: University department of medicine. PATIENT(S): Two hundred and forty-four consecutive PCOS women. INTERVENTION(S): All studied patients completed a simple questionnaire to indicate their mean family income and their school education. MAIN OUTCOME MEASURE(S): Ovulation was assessed by measurement of serum progesterone on day 22 of a spontaneous or induced menstrual cycle. Levels of blood testosterone, sex hormone-binding globulin, insulin, and blood glucose were evaluated. RESULT(S): In the low to medium income group, 21% of patients had ovulatory PCOS, but the prevalence of the same PCOS phenotype was 43% in patients with high income. In patients with low education, only 12% presented with ovulatory PCOS compared with 47% of the patients with high education status. Mean family income negatively correlated with body mass index, waist circumference, insulin, and insulin resistance. Serum progesterone correlated negatively with insulin and insulin resistance. CONCLUSION(S): In an ethnically homogeneous PCOS population, high socioeconomic status was associated with a higher prevalence of the ovulatory phenotype. Differences in ovulatory status between the social classes seem to be related to differences in insulin levels and fat quantity and distribution.


Asunto(s)
Ovulación , Síndrome del Ovario Poliquístico/fisiopatología , Adulto , Escolaridad , Femenino , Humanos , Renta , Progesterona/sangre , Factores Socioeconómicos
18.
Fertil Steril ; 84(2): 413-9, 2005 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-16084883

RESUMEN

OBJECTIVE: To determine how common polycystic ovarian morphology may be in women given the clinical diagnosis of polycystic ovary syndrome (PCOS) based on chronic anovulation and hyperandrogenism and whether certain hormonal factors correlate with ovarian morphology and blood flow. DESIGN: Prospective study. SETTING: Two academic endocrinology centers in Italy. PATIENT(S): Three hundred twenty-six women with PCOS and 50 age-matched and weight-matched ovulatory women. INTERVENTION(S): Ultrasound assessment of ovarian morphology in patients and controls and ovarian blood flow and fasting hormone levels in a subset of 50 patients and matched controls. MAIN OUTCOME MEASURE(S): Ovarian morphological assessments, ovarian blood flow by pulsatility index (PI) and resistance index (RI), and measurements of gonadotropins, estrogen, sex hormone-binding globulin, androgens, inhibin B, glucose, and insulin. RESULT(S): Using strict ultrasound criteria, 195 woman (60%) had enlarged ovaries, 135 (35%) had normal ovarian size but characteristic morphology, and 16 (5%) had normal size and morphology. Ovarian blood flow was increased (reduced PI and RI) in PCOS. All hormonal parameters were elevated in PCOS. Ovarian size correlated only with insulin and a measure of insulin resistance. Ovarian blood flow correlated positively with insulin, T, free T, and E2 but not with luteinizing hormone. Inhibin B showed a negative correlation with ovarian blood flow. CONCLUSION(S): When a clinical diagnosis of PCOS was made, virtually all women were found to have characteristic ovarian morphology. Insulin correlated with increased ovarian size as well as with increased blood flow. Blood flow also correlated positively with sex steroids but negatively with inhibin B.


Asunto(s)
Hormonas Esteroides Gonadales/sangre , Ovario/irrigación sanguínea , Ovario/patología , Síndrome del Ovario Poliquístico/sangre , Síndrome del Ovario Poliquístico/patología , Análisis de Varianza , Anovulación/sangre , Anovulación/patología , Glándulas Endocrinas/metabolismo , Glándulas Endocrinas/patología , Femenino , Humanos , Hiperandrogenismo/sangre , Hiperandrogenismo/patología , Tamaño de los Órganos/fisiología , Ovario/metabolismo , Estudios Prospectivos , Flujo Sanguíneo Regional , Estadísticas no Paramétricas
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...