All clinical trials

This is a prospective cohort study. The main objective is to compare the frequency of a "full stomach" in the diabetic population compared to healthy controls 2 h after clear liquid and 6h after a light meal, and evaluate the mean gastric emptying time of clear liquid and light meal in diabetic patients.

Reduced ovarian reserve and the consequent poor ovarian response are very recurent in infertile patients, indeed a percentage of 10%-24% of couples addressed to infertility program may be classified as Poor Ovarian Responder (POR). Objective: To evaluate whether the repeated luteal phase stimulation (Second Step) permits a significantly higher number of oocytes retrieved in POR when compared to conventional follicular stimulation. Interventions: The follicular phase stimulation is conduced according to a standardized Antagonist protocol or Short protocol (with GnRH agonist) using recombinant or urinary gonadotropins (starting dose 300 or 450 UI) or a long lasting recombinant gonadotropin (Corifollitropin alfa 150 mcg). Two - six days after the first oocyte retrieval a second gonadotropin stimulation will be started with a GnRH antagonist protocol (the stimulation will be started with 250 UI of human menopausal gonadotropin (hMG) and a GnRH antagonist (GnRH-an) 0,25 mg\die will be administered when the leading follicle is ≥ 14 mm until hCG (human chorionic gonadotropin) criteria are met. When at least two follicles had reached 17-18 mm in diameter, ovulation will be triggered with a single subcutaneous bolus of urinary human chorionic gonadotropin (10.000 UI ) and oocyte retrieval will be performed after 35 hours. Two or Three months after the second oocyte retrieval the Embryo transfer (ET) will be performed after endometrial preparation with Estradiol Valerate and intramuscular Progesterone.

Critically ill patients with body mass index (BMI) inferior to 20 kg/m2 have worse outcomes compared to normal and overweight patients. The impact nutrition therapy in this population is not yet stablished. There is a concern that too low caloric intake might worse their malnutrition; on the other hand, overfeeding is always a risk with serious consequences. The hypothesis of this study is that nutritional support, especially caloric and protein intake, can influence the outcome of underweight critically ill patients.

The objective of this study is to describe the pharmacokinetics of standard doses of caspofungin in critically ill patients.

Objectives: Upper eyelid retraction was believed to be maintained solely by voluntary contraction of the levator palpebrae superioris (LPS) and frontalis muscles, together with involuntary contraction of the sympathetically innervated Müller's muscle (MM). However, several studies have suggested that the LPS also undergoes involuntary contractions, and that a visual stimulus may not be the only trigger for frontalis muscle contractions. Recent studies hypothesized that the MM contains proprioceptive neuronal structures, which elicit involuntary LPS muscle contraction by the mesencephalic trigeminal nucleus via a continuous stretch reflex. We aim to identify proprioceptive structures in MM by means of histological examinations. Methodology: Prospective study. Collaboration of oculoplastics, ophthalmologists and a neuroanatomy specialist in Sheba Medical Center. 50 fresh MM specimens from patients undergoing Müllerectomies will undergo histologic examinations, including immunohistochemical staining and light and electron microscopy. Significance: Identification of proprioceptive structures in MM will be the first evidence-based proof of a proprioceptive mechanism in the eyelid. This might have a significant impact on future surgical management of eyelid procedures. Comprehensive understanding of the mechanisms underlying eyelid function is especially important in the management of children with ptosis who may have coexisting amblyopia.

In the past few years, circulating tumor cells (CTCs), circulating tumor DNA (ctDNA), microRNAs, autoantibodies, and T-cell receptor repertoire are new biomarkers of liquid biopsy in cancer, which has been demonstrated to have a great value in diagnostics, treatment evaluation, and prognosis prediction. However, most of previous data were based on late stage tumor patients. This study plans to utilize the minimally invasive method to detect the changes of numbers of CTCs, ctDNA hot spot mutations and methylation signals, microRNAs, autoantibodies, and T-cell receptor repertoire in early stage lung cancer patients before and after pulmonary nodule biopsy, during therapeutic and follow-up periods, in order to evaluate the clinical values of above tumor-related biomarkers.

Does vitamin D is more deficient in women with unexplained infertility than in fertile pregnant women or not?

Autoimmune thyroid disease (AITD), which includes Hashimoto's thyroiditis (HT) and Grave's disease (GD), are the most common organ-specific autoimmune diseases and affect more women than men, with a female-to-male ratio from 5 to 10. Many studies have indicated that alterations in the gut microbiota are important environmental factors in the development of inflammatory and autoimmune diseases. Investigators systematically performed a comparative analysis of the gut microbiota in AITD patients and healthy controls.

The primary objective of this single-center multi-site retrospective chart review is to determine if paliperidone palmitate and/or risperidone long-acting injection can decrease the number of psychiatric relapses following their initiation in an inpatient acute psychiatric unit compared to oral antipsychotic therapy and determine if one treatment is superior to the other in this regard. This study will utilize a mirror-image design and incorporate up to a 3 years of follow-up following the index admission. Secondary objectives of this study will be to determine the change in hospital resource utilization for psychiatric reasons following treatment initiation, and to determine the difference in time to relapse.

Relationship between human microbiota and epidemiology of lung cancer