Introduction: Iron deficiency is common in patients with non-dialysis-dependent chronic kidney disease (NDD-CKD). Oral iron supplementation is recommended in these patients, but it is associated with a higher incidence of gastrointestinal adverse reactions. Liposomal iron therapy has been proposed as a new iron formulation, improving iron bioavailability with less side effects; however, few data are available in patients with NDD-CKD.
View Article and Find Full Text PDFThe cerebellum is emerging as a powerful regulator of cognitive and affective processing and memory in both humans and animals and has been implicated in affective disorders. How the cerebellum supports affective function remains poorly understood. The short-latency (just a few milliseconds) functional connections that were identified between the cerebellum and amygdala-a structure crucial for the processing of emotion and valence-more than four decades ago raise the exciting, yet untested, possibility that a cerebellum-amygdala pathway communicates information important for emotion.
View Article and Find Full Text PDFAcute autoimmune encephalitis is a severe neurological disorder presenting with altered level of consciousness, confusion, irritability, headache, vomiting, and in some cases seizures. An infective event precedes by 1-2 weeks the onset of the symptoms. Cognitive impairment is considered the cardinal symptom.
View Article and Find Full Text PDFThe hippocampus can be divided into distinct segments that make unique contributions to learning and memory. The dorsal segment supports cognitive processes like spatial learning and navigation while the ventral hippocampus regulates emotional behaviors related to fear, anxiety and reward. In the current study, we determined how pyramidal cells in ventral CA1 respond to spatial cues and aversive stimulation during a context fear conditioning task.
View Article and Find Full Text PDFIn our paper we report a brief history of the X-rays discovery and discuss the implications of their use and abuse in the Italian pedriatic schools of the early 20th century. Indeed, history of the X-ray treatment in the Italian Pediatric School has not yet been well studied. Even if the scientific experience of many physicians is well known in literature, a summary was missing.
View Article and Find Full Text PDFInt J Pediatr Otorhinolaryngol
February 2020
Grisel's syndrome (GS) is a non traumatic atlanto-axial rotatory subluxation of C1-C2 joint. A six year old girl, 20 days after an episode of fever, developed a torticollis and a 3/6 heart murmur. The echocardiography showed a Rheumatic Carditis.
View Article and Find Full Text PDFExtrapulmonary manifestations of tuberculosis (TB) are particularly frequent during childhood, and usually involve the lymph nodes and the skull. They are related to predisposing immunosuppression conditions. A patient affected by diabetes mellitus type 1 (DMT1) and congenital lamellar ichthyosis type 3 came at our attention with a 4-year history of recurrent parotitis and severe back pain and inferior limb hypomobility, which had lasted for 6 months.
View Article and Find Full Text PDFBackground/aim: Mixed Cryoglobulinemia (MC) represents the most frequent extrahepatic manifestation of chronic Hepatitis C Virus (HCV) infection. Its pathogenic mechanisms involve HCV-induced chronic stimulation of B-lymphocytes. We aimed to investigate the relationship between serum levels of vitamin D (a regulator of immune response) and the presence of serum cryoglobulins in the setting of HCV infection.
View Article and Find Full Text PDFIn this paper we are proposing a general framework for the analysis of the complete set of log Odds Ratios (ORs) generated by a two-way contingency table. Starting from the RC (M) association model and hypothesizing a Poisson distribution for the counts of the two-way contingency table we are obtaining the weighted Log Ratio Analysis that we are extending to the study of log ORs. Particularly we are obtaining an indirect representation of the log ORs and some synthesis measures.
View Article and Find Full Text PDFMinerva Pediatr
October 2013
In recent years, infection with cytomegalovirus (CMV) was the subject of numerous studies, one side being the most frequent congenital infection in newborns and one that determines the increased incidence of sequelae distance (about one third of childhood deafness is due to CMV), and the other one of the most frequent and serious opportunistic infections in immunocompromised individuals. Of newborns with congenital infection, approximately 10% are symptomatic at birth. Of the remaining 90%, asymptomatic at birth, 10-15% will develop sequelae from a distance.
View Article and Find Full Text PDFAim: To evaluate the influence of incivility on the new graduate nurse transition experience.
Background: Incivility in the work environment is a major source of dissatisfaction and new graduate nurses are especially vulnerable. Incivility contributes to the high levels of turnover associated within the first 2 years of new graduate nurse employment.
The aim of this study was to evaluate the toxicity of two rare earth elements (REE), cerium and lanthanum on sea urchin embryos and sperm. Sea urchin (Paracentrotus lividus) embryos were reared for 72 h in Ce(IV)- or La(III)-contaminated seawater at concentrations ranging from 10(-8) to 10(-5) M. Cleaving embryos (5h post-fertilization) were submitted to cytogenetic analysis, scoring mitotic activity and a set of mitotic aberrations.
View Article and Find Full Text PDFRecent efforts toward developing vaccines against group B streptococci (GBS) have focused on increasing the immunogenicity of GBS polysaccharides by conjugation to carrier proteins. However, partial depolymerization of GBS polysaccharides for the production of vaccines is a difficult task because of their acid-labile, antigenically critical sialic acids. Here we report a method for the partial depolymerization of type II and III polysaccharides by mild deaminative cleavage to antigenic fragments with reducing-terminal 2,5-anhydro-d-mannose residues.
View Article and Find Full Text PDFBackground: Laparoscopic splenectomy (LS) offers better short-term results than open surgery for the treatment of immune thrombocytopenic purpura (ITP), but long-term follow-up is required to ensure its efficacy. The remission rate after splenectomy ranges from 49 to 86% and the factors that predict a successful response to surgical management have not been clearly defined. The goal of this study was to determine the preoperative factors that predict a successful outcome following LS.
View Article and Find Full Text PDFAnn Thorac Surg
September 2000
Background: Heparin resistance is an important clinical problem traditionally treated with additional heparin or fresh frozen plasma. We undertook a randomized clinical trial to determine if treatment with antithrombin (AT) concentrate is effective for treating this condition.
Methods: Patients requiring cardiopulmonary bypass who were considered to be heparin resistant (activated clotting time < 480 seconds after > 450 IU/kg heparin) were randomized to receive either 1000 U AT or additional heparin.
A genetically detoxified pneumolysin, pneumolysoid (PLD), was investigated as a carrier protein for pneumococcal capsular polysaccharide (CPS). Such a CPS-PLD conjugate might provide additional protection against pneumococcal infections and resultant tissue damage. A single point mutant of pneumolysin was selected, which lacked measurable haemolytic activity, but exhibited the overall structural and immunological properties of the wild type.
View Article and Find Full Text PDFIn this study, we tested the hypothesis that the immunogenicity and protective efficacy of polysaccharide-protein conjugate vaccines are influenced by three variables: (i) molecular size of the conjugate, (ii) molecular size of the polysaccharide used for conjugation, and (iii) extent of polysaccharide-to-protein cross-linking. Type III group B Streptococcus capsular polysaccharide was linked by reductive amination at multiple sites to tetanus toxoid to create a polysaccharide-protein conjugate (III-TT). A single lot of III-TT was fractionated into small, medium, and large Mr pools.
View Article and Find Full Text PDFTwo methods are described for direct molar-mass measurement of low-molar-mass fragments obtained by oxidative cleavage of the capsular polysaccharide of Haemophilus influenzae type b. Absolute molar masses were determined by size-exclusion chromatography (SEC) with detection by multiangle laser-light-scattering photometry (MALLS) and differential refractometry (RI). The end-group structure of the polysaccharide fragments allowed the direct measurement of average chain length by quantitative 1H NMR, from which molar masses were derived.
View Article and Find Full Text PDFThe conditions of the reductive-cleavage method were modified to allow simultaneous analysis of 2-acetamido-2-deoxy-D-glucopyranosyl residues and monosaccharides of other classes. Methyl 2-deoxy-3,4,6-tri-O-methyl-2-(N-methylacetamido)-beta-D-glucopyran oside was found to undergo transglycosidation under reductive-cleavage conditions when the reaction was quenched with an alcohol. Transglycosidation proceeded via an oxazolinium-ion intermediate, which then acted as a glycosyl donor to form an anomerically pure product.
View Article and Find Full Text PDFModifications of the reductive-cleavage method for the analysis of 2-acetamido sugars were tested using a polysaccharide containing alpha-linked 2-acetamido-2,6-dideoxy-L-galactopyranosyl (Fuc pNAc) residues, beta-linked D-Fuc pNAc residues and 2-linked D-glucopyranosyl residues. Reductive cleavage of the fully methylated O-antigenic polysaccharide of Pseudomonas aeruginosa ATCC 33358 in the presence of triethylsilane and trimethylsilyl trifluoromethanesulfonate, followed by quenching with methanol and subsequent acetylation, unexpectedly resulted in nearly complete cleavage of all glycosidic linkages to yield 2-O-acetyl-1,5-anhydro-3,4,6-tri-O-methyl-D-glucitol (1a) and methyl 3-O-acetyl-2,6-dideoxy-4-O-methyl-2-(N-methylacetamido)-beta-D- and -L- galactopyranosides (3a and 4a) as the major products. When the reductive-cleavage reaction was quenched with (S)-2-butanol, the major FucNAc derivatives were the diastereomeric (S)-2-butyl glycosides 15a and 17a, confirming the presence of enantiomeric FucNAc residues in the repeating unit of the polysaccharide.
View Article and Find Full Text PDFReductive cleavage of fully methylated, partially O-ethylated cellulose or fully ethylated, partially O-methylated cellulose and subsequent acetylation had previously been shown to produce 4-O-acetyl-1,5-anhydro-2,3,6-tri-O-methyl-, -6- O-ethyl-2,3-di-O-methyl-, -3-O-ethyl-2,6-di-O-methyl-, -2-O-ethyl-3,6-di-O- methyl-, -2,3-di-O-ethyl-6-O-methyl-, -2,6-di-O-ethyl-3-O-methyl-, -3,6-di-O- ethyl-2-O-methyl-, and -2,3,6-tri-O-ethyl-D-glucitol. Described herein is the independent synthesis of these derivatives, except for the first (which had been reported); and their 1H-n.m.
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