RESUMO
OBJECTIVES: The purpose of the present randomized controlled clinical trial was to compare the use of donkey milk-derived fortifier (DF) with commercial bovine milk-derived fortifier (BF) in very preterm or very-low-birth-weight newborns, in terms of feeding tolerance. METHODS: This trial included 156 newborns born at <32 weeks of gestational age and/or with a birth weight ≤1500âg. Newborns were randomized 1:1 to receive enteral feeding with either a BF-arm, or a new, DF-arm for 21 days. The fortification protocol was the same for both study arms, and the 2 diets were designed to be isoproteic and isocaloric. Feeding tolerance was assessed by a standardized protocol. RESULTS: The risk of feeding intolerance tended to be lower in DF-arm than in BF-arm, with a relative risk reduction of 0.63 (95% confidence interval: -0.29, +0.90). The mean number of episodes per newborn of feeding intolerance and feeding interruptions (any duration) were consistently lower in the DF-arm than in the BF-arm. Episodes of bilious gastric residuals and vomiting were significantly lower in the DF-arm. Time needed to reach full enteral feeding (150âmLâ·âkgâ·âday) and daily weight increase between the first day of exclusive enteral feeding (ie, without administering intravenous fluids) and discharge were similar in the BF- and DF-arms. CONCLUSIONS: These results suggest that DF improve feeding tolerance when compared with standard bovine-derived fortifiers, with a similar auxological outcome.
Assuntos
Nutrição Enteral/métodos , Alimentos Fortificados , Recém-Nascido Prematuro/crescimento & desenvolvimento , Recém-Nascido de muito Baixo Peso/crescimento & desenvolvimento , Leite Humano , Leite , Animais , Equidae , Feminino , Humanos , Fenômenos Fisiológicos da Nutrição do Lactente , Recém-Nascido , Masculino , Estado Nutricional , Aumento de PesoRESUMO
BACKGROUND: The current study explored whether pathogen-reduction treatment of platelet components before transfusion would decrease the risk of alloimmunization. STUDY DESIGN AND METHODS: Study participants were patients with hematologic cancer who were included in two parallel, randomized clinical trials testing pathogen-reduction treatment versus conventional platelets using the Mirasol or Intercept pathogen-reduction systems. Patients who had a baseline, pretransfusion sample and a follow-up, posttransfusion sample were included in the study (n = 179 patients in each study arm). Human leukocyte antigen antibody levels were determined using a commercial multianalyte, bead-based assay. RESULTS: The rate of human leukocyte antigen Class I alloimmunization at the clinical sites in recipients of conventional platelets was low at the highest assay cutoff (range, 1.2%-5.9%). Consistent with prior studies, human leukocyte antigen antibodies were first detected from 3 to 35 days after transfusion. There were no statistically significant differences between alloimmunization rates in patients who received pathogen-reduction treatment versus conventional platelet transfusions. Although he difference was not statistically significant, the effect size for protection from alloimmunization was greatest for high-level human leukocyte antigen Class I antibodies (approximately threefold) in the Intercept-treated patients compared with those who received conventional platelets. In the Mirasol study, only two patients and one patient in the control group developed medium-level or high-level antibodies, respectively, so it was impossible to determine an effect size for potential protection. CONCLUSIONS: The current study was not sufficiently powered to determine whether pathogen-reduction treatment provides protection from human leukocyte antigen alloimmunization in platelet transfusion recipients. The data presented will be useful in the design of future trials and endpoints powered to detect a protective effect.
Assuntos
Imunização , Transfusão de Plaquetas/métodos , Raios Ultravioleta , Plaquetas/imunologia , Plaquetas/efeitos da radiação , Desinfecção , Antígenos HLA/imunologia , Neoplasias Hematológicas/terapia , Antígenos de Histocompatibilidade Classe I , Humanos , Isoanticorpos/sangue , Transfusão de Plaquetas/efeitos adversosRESUMO
BACKGROUND: Chronic benign neutropenia of infancy includes primary autoimmune neutropenia (pAIN) and chronic idiopathic neutropenia (CIN). A diagnosis of CIN is supported by the absence of free and/or cell-bound neutrophil autoantibodies, which can be detected by flow cytometry with the indirect-granulocyte immunofluorescence test (I-GIFT) and direct-granulocyte immunofluorescence test (D-GIFT), respectively. Conclusive evidence is lacking on the diagnostic value of the D-GIFT, whose performance requires specific laboratory expertise, may be logistically difficult, and hampered by very low neutrophil count in patient samples. This study investigated whether the evaluation of D-GIFT improves the diagnostic accuracy of pediatric neutropenia. PROCEDURE: I-GIFT and D-GIFT were performed in 174 pAIN, 162 CIN, 81 secondary AIN, 51 postinfection neutropenic, and 65 nonautoimmune neutropenic children referred to this laboratory during 2002-2014. RESULTS: Using 90% specific median fluorescence intensity cut-off values calculated by receiver operating characteristic curves, D-GIFT was positive in 49% of CIN patients, who showed similar clinical features as those with pAIN. In 44 (27%) of 162 CIN patients, I-GIFT was repeated two to three times in a year, resulting positive in 12 and two patients at second and third screening, respectively. Interestingly, 10 of the latter 14 patients showed a positive D-GIFT at the first serological screening. False positive D-GIFT was shown by 12% and 22% of nonneutropenic and nonautoimmune neutropenic patients, respectively. CONCLUSIONS: D-GIFT evaluation improves the diagnostic accuracy of pediatric neutropenia, but improvement of cell-bound antibody detection is needed to decrease false positive results.
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Anticorpos Anticitoplasma de Neutrófilos/sangue , Doenças Autoimunes/sangue , Doenças Autoimunes/diagnóstico , Neutropenia/sangue , Neutropenia/diagnóstico , Adolescente , Adulto , Criança , Pré-Escolar , Doença Crônica , Feminino , Citometria de Fluxo , Técnica Indireta de Fluorescência para Anticorpo , Humanos , Lactente , Recém-Nascido , MasculinoRESUMO
BACKGROUND: Fortification of human milk is a standard practice for feeding very low birth weight infants. However, preterm infants often still experience suboptimal growth and feeding intolerance. New fortification strategies and different commercially available fortifiers have been developed. Commercially available fortifiers are constituted by a blend of ingredients from different sources, including plant oils and bovine milk proteins, thus presenting remarkable differences in the quality of macronutrients with respect to human milk. Based on the consideration that donkey milk has been suggested as a valid alternative for children allergic to cow's milk proteins, due to its biochemical similarity to human milk, we hypothesized that donkey milk could be a suitable ingredient for developing an innovative human milk fortifier. The aim of the study is to evaluate feeding tolerance, growth and clinical short and long-term outcomes in a population of preterm infants fed with a novel multi-component fortifier and a protein concentrate derived from donkey milk, in comparison to an analogous population fed with traditional fortifier and protein supplement containing bovine milk proteins. METHODS: The study has been designed as a randomized, controlled, single-blind clinical trial. Infants born <1500 g and <32 weeks of gestational age were randomized to receive for 21 days either a combination of control bovine milk-based multicomponent fortifier and protein supplement, or a combination of a novel multicomponent fortifier and protein supplement derived from donkey milk. The fortification protocol followed is the same for the two groups, and the two diets were designed to be isoproteic and isocaloric. Weight, length and head circumference are measured; feeding tolerance is assessed by a standardized protocol. The occurrence of sepsis, necrotizing enterocolitis and adverse effects are monitored. DISCUSSION: This is the first clinical study investigating the use of a human milk fortifier derived from donkey milk for the nutrition of preterm infants. If donkey milk derived products will be shown to improve the feeding tolerance or either of the clinical, metabolic, neurological or auxological outcomes of preterm infants, it would be an absolute innovation in the field of feeding practices for preterm infants. TRIAL REGISTRATION: ISRCTN - ISRCTN70022881 .
Assuntos
Alimentos Fortificados , Proteínas do Leite/uso terapêutico , Leite Humano , Inquéritos Nutricionais/estatística & dados numéricos , Estado Nutricional , Aumento de Peso/efeitos dos fármacos , Animais , Equidae , Humanos , Recém-Nascido Prematuro/crescimento & desenvolvimento , Recém-Nascido de muito Baixo Peso/crescimento & desenvolvimento , Itália , Proteínas do Leite/administração & dosagem , Projetos de PesquisaRESUMO
BACKGROUND: Two noninferiority, randomized, controlled trials were conducted in parallel comparing the safety and efficacy of platelets treated with Intercept or Mirasol pathogen-reduction technologies versus standard platelets. STUDY DESIGN AND METHODS: The primary endpoint was the percentage of hematology patients who developed World Health Organization Grade 2 or greater bleeding. A noninferiority margin of 11% was chosen based on expected Grade 2 or greater bleeding in 20% of controls. The study was closed for financial restrictions before reaching the planned sample size of 828 patients, and an intention-to-treat analysis was conducted on 424 evaluable patients. RESULTS: In the Intercept trial (113 treated vs. 115 control patients), the absolute risk difference in Grade 2 or greater bleeding was 6.1%, with an upper one-sided 97.5% confidence limit of 19.2%. The absolute risk difference in the Mirasol trial (99 treated vs. 97 control patients) was 4.1%, and the upper one-sided 97.5% confidence limit was 18.4%. Neither absolute risk difference was statistically significant. In both trials, posttransfusion platelet count increments were significantly lower in treated versus control patients. Mean blood component use in treated patients versus controls was 54% higher (95% confidence interval, 36%-74%; Intercept) and 34% higher (95% confidence interval, 16%-54%; Mirasol) for platelets and 23% higher (95% confidence interval, 8%-39%; Intercept) and 32% higher (95% confidence interval, 10%-57%; Mirasol) for red blood cells. Unexpected reactions and adverse events were not reported. Mortality did not differ significantly between treated and control patients. CONCLUSION: Although conclusions on noninferiority could not be drawn due to low statistical power, the study provides additional information on the safety and efficacy of pathogen-reduced platelets treated with two commercial pathogen-reduction technologies.
Assuntos
Antissepsia/métodos , Hemorragia/etiologia , Transfusão de Plaquetas/efeitos adversos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Antissepsia/normas , Preservação de Sangue/métodos , Transmissão de Doença Infecciosa/prevenção & controle , Feminino , Hemorragia/microbiologia , Humanos , Masculino , Pessoa de Meia-Idade , Contagem de Plaquetas , Transfusão de Plaquetas/métodos , Adulto JovemRESUMO
BACKGROUND: Oral propranolol reduces retinopathy of prematurity (ROP) progression, although not safely. This study evaluated safety and efficacy of propranolol eye micro-drops in preterm newborns with ROP. METHODS: A multicenter open-label trial, planned according to the Simon optimal two-stage design, was performed to analyze safety and efficacy of propranolol micro-drops in newborns with stage 2 ROP. To this end, hemodynamic and respiratory parameters were monitored, and blood samples were collected weekly, for 3 wk. Propranolol plasma levels were also monitored. The progression of the disease was evaluated with serial ophthalmologic examinations. RESULTS: Twenty-three newborns were enrolled. Since the fourth of the first 19 newborns enrolled in the first stage of the study showed a progression to stage 2 or 3 with plus, the second stage was prematurely discontinued. Even though the objective to complete the second stage was not achieved, the percentage of ROP progression (26%) was similar to that obtained previously with oral propranolol administration. However, no adverse effects were observed and propranolol plasma levels were significantly lower than those measured after oral administration. CONCLUSION: Propranolol 0.1% eye micro-drops are well tolerated, but not sufficiently effective. Further studies are required to identify the optimal dose and administration schedule.
Assuntos
Propranolol/administração & dosagem , Retinopatia da Prematuridade/tratamento farmacológico , Administração Oftálmica , Administração Oral , Administração Tópica , Progressão da Doença , Feminino , Hemodinâmica , Humanos , Recém-Nascido , Masculino , Neovascularização Fisiológica/efeitos dos fármacos , Segurança do Paciente , Projetos Piloto , Propranolol/sangue , RespiraçãoRESUMO
BACKGROUND: Retinopathy of prematurity (ROP) still represents one of the leading causes of visual impairment in childhood. Systemic propranolol has proven to be effective in reducing ROP progression in preterm newborns, although safety was not sufficiently guaranteed. On the contrary, topical treatment with propranolol eye micro-drops at a concentration of 0.1% had an optimal safety profile in preterm newborns with ROP, but was not sufficiently effective in reducing the disease progression if administered at an advanced stage (during stage 2). The aim of the present protocol is to evaluate the safety and efficacy of propranolol 0.2% eye micro-drops in preterm newborns at a more precocious stage of ROP (stage 1). METHODS: A multicenter, open-label, phase II, clinical trial, planned according to the Simon optimal two-stage design, will be performed to analyze the safety and efficacy of propranolol 0.2% eye micro-drops in preterm newborns with stage 1 ROP. Preterm newborns with a gestational age of 23-32 weeks, with a stage 1 ROP will receive propranolol 0.2% eye micro-drops treatment until retinal vascularization has been completed, but for no longer than 90 days. Hemodynamic and respiratory parameters will be continuously monitored. Blood samplings checking metabolic, renal and liver functions, as well as electrocardiogram and echocardiogram, will be periodically performed to investigate treatment safety. Additionally, propranolol plasma levels will be measured at the steady state, on the 10th day of treatment. To assess the efficacy of topical treatment, the ROP progression from stage 1 ROP to stage 2 or 3 with plus will be evaluated by serial ophthalmologic examinations. DISCUSSION: Propranolol eye micro-drops could represent an ideal strategy in counteracting ROP, because it is definitely safer than oral administration, inexpensive and an easily affordable treatment. Establishing the optimal dosage and treatment schedule is to date a crucial issue. TRIAL REGISTRATION: ClinicalTrials.gov Identifier NCT02504944, registered on July 19, 2015, updated July 12, 2016. EudraCT Number 2014-005472-29.
Assuntos
Antagonistas Adrenérgicos beta/uso terapêutico , Soluções Oftálmicas/uso terapêutico , Propranolol/uso terapêutico , Retinopatia da Prematuridade/tratamento farmacológico , Administração Tópica , Protocolos Clínicos , Feminino , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Masculino , Estudos Prospectivos , Resultado do TratamentoRESUMO
Background The aim of this study was to evaluate the association between red blood cell (RBC) transfusions on the risk of death, retinopathy of prematurity (ROP), bronchopulmonary dysplasia (BPD), and necrotizing enterocolitis (NEC) in very low birth weight (VLBW) infants. Study Design and Methods This is an observational study. Data were entered prospectively into the study database at the time of the first transfusion. Clinical characteristics, adverse events, and outcomes of the patients transfused in the first 28 days of life were compared with the population of VLBW infants not transfused during the same period. The association among birth weight, gestational age, comorbidities, and the number of transfusions was estimated with a Poisson regression model. The association between the composite outcome and the occurrence of death, ROP, or BPD separately considered and a set of covariates was estimated with a logistic regression model. Results We enrolled 641 VLBW infants, 42% of whom were transfused. Transfusions were associated with the risk of developing the composite outcome, independently from other conditions; this risk correlated with several transfusions ≥ 3 (odds ratio: 5.88, 95% confidence interval: 2.74-12.6). ROP and BPD were associated with several transfusions ≥ 3. Conclusion We observed an association between RBC transfusions and the composite risk of death or ROP, BPD, and NEC.
Assuntos
Anemia Neonatal/terapia , Displasia Broncopulmonar/epidemiologia , Enterocolite Necrosante/epidemiologia , Transfusão de Eritrócitos/estatística & dados numéricos , Morte Perinatal , Retinopatia da Prematuridade/epidemiologia , Estudos de Casos e Controles , Estudos de Coortes , Feminino , Idade Gestacional , Humanos , Recém-Nascido de Peso Extremamente Baixo ao Nascer , Lactente Extremamente Prematuro , Recém-Nascido , Recém-Nascido Prematuro , Recém-Nascido de muito Baixo Peso , Modelos Logísticos , Masculino , Fatores de RiscoRESUMO
INTRODUCTION: The aim of this study was to analyze how the progression of cervical dilatation in active labor can be predicted by digital assessment in low-risk pregnant women, in spontaneous labor at term. MATERIAL AND METHODS: This prospective observational study was performed on 328 women with singleton term gestations experiencing midwife-led labor according to local protocols, progressing to full dilatation and spontaneous delivery without any medical intervention. Mixed nonlinear models were adopted to (i) model individual cervical data into centile curves and (ii) calculate the time needed to gain 1 cm in cervical dilatation (TNG1cm ) modeled as a function of current dilatation. We correlated the first and the last TNG1cm on parturients with at least four cervical data points. RESULTS: TNG1cm showed large variations, both before and after 6 cm. This variability of natural progression of cervical curves described by the 10th and 90th centiles exceeded the differences observed in published curves from cohorts homogeneous for parity, weight and ethnicity. There was no significant correlation between the first and the last TNG1cm . Neonatal base excess was not significantly different in women with TNG1cm <10th centile and >90th centile. CONCLUSIONS: The rate of cervical dilatation, traced by parsimonious nonlinear mixed models, is largely unpredictable in the case of spontaneous naturally progressing labor, even when possible larger individual variability is excluded by prudent clinical rules. Future research in labor and delivery should be focused on the diagnosis of the causes that lie behind apparently erratic cervical changes.
Assuntos
Colo do Útero/fisiologia , Trabalho de Parto/fisiologia , Adulto , Maturidade Cervical/fisiologia , Dilatação , Feminino , Humanos , Primeira Fase do Trabalho de Parto/fisiologia , Modelos Lineares , Gravidez , Estudos ProspectivosRESUMO
OBJECTIVES: The Extended Mechanistic Growth Function (EMGF) method (Clementi et al. [1999]: Am J Med Genet 87:317-323) is a possible alternative to the Cole and Green LMS method ([1992] Stat Med 11:1305-1319) to construct cross-sectional anthropometric charts. It differs from the technique used by Kuczmarski et al. ([2002]: Vital Health Stat 11:1-190) to trace the CDC growth charts in that all centiles are simultaneously fitted with a single function. The aim of this study is to show how an EMGF model can be designed. METHODS: To illustrate the structure and properties of the EMGF method, the data of the Italian Neonatal Study (Bertino et al. [2010]: J Pediatr Gastroenterol Nutr 51:353-361) were analyzed. The dataset included the birth weight of 45,272 single liveborn babies with gestational ages ranging from 23 to 42 weeks. The EMGF method consists of three steps. In the preliminary step, selected age-dependent raw centiles of the anthropometric trait are computed. In the smoothing step, all centiles are simultaneously fitted with a growth function extended with the inclusion of a few extra parameters. In the transformation step, estimates of the age-dependent L (skewness), M (median), and S (coefficient of variation) parameters are derived. RESULTS: A four-parameter generalized logistic function, extended with five parameters to model between-sex differences, distance between centiles and their slope, was found to fit the raw centiles of birth weight distribution with a residual standard deviation of 51.3 g. CONCLUSIONS: The EMGF method represents a bridge to link cross-sectional and longitudinal studies and allows us to identify milestones of the median growth in a population in the same way used for individual profiles.
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Antropometria/métodos , Peso ao Nascer , Desenvolvimento Infantil , Gráficos de Crescimento , Estudos Transversais , Feminino , Humanos , Recém-Nascido , Itália , Masculino , Modelos Teóricos , Caracteres SexuaisRESUMO
BACKGROUND: Patients, now generally well informed through dedicated websites and support organizations, are beginning to look askance at clinical experimentation. We conducted a survey investigation to verify whether women with endometriosis would still accept to participate in a randomized controlled trial (RCT) on treatment for pelvic pain. METHODS: A total of 500 patients consecutively self-referring to an academic outpatient endometriosis clinic, were asked to compile two questionnaires focused on hypothetical comparisons between a new drug and a standard drug, and between medical and surgical treatment, for endometriosis-associated pelvic pain. The main outcome measure was the percentage of patients willing to participate in a theoretical RCT. RESULTS: A total of 239 (48 %) women would decline participation in a comparative study on a new drug and a standard drug, as 204 (41 %) would prefer the former medication, and 35 (7 %) the latter. Fifty women (10 %) would participate in a RCT, but only 24 (5 %) would accept blinding. The most frequently chosen option was the patient preference trial (211; 42 %). No significant differences were observed in demographic and clinical characteristics between the 50 women who would accept and the 450 who would decline to be enrolled in a RCT. A total of 229 women (46 %) would decline participation in a comparative study on medical versus surgical treatment, as 186 (37 %) would prefer pharmacological therapy and 43 (9 %) a surgical procedure. Only 11 (2 %) women would participate in such a RCT. More than half of the women (260; 52 %) selected the patient preference trial. No significant variations in distributions of answers were observed between women who did or did not undergo a previous surgical procedure. CONCLUSION: Only a small minority of the women included in our study sample would accept randomization, and even less so blinding. Patient preference appears to play a central role when planning interventional trials on endometriosis-associated pelvic pain. Adequately designed observational analytic studies could be considered when recruitment in a RCT appears cumbersome.
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Endometriose/tratamento farmacológico , Dor Pélvica/cirurgia , Ensaios Clínicos Controlados Aleatórios como Assunto , Adulto , Endometriose/psicologia , Endometriose/cirurgia , Feminino , Humanos , Pessoa de Meia-Idade , Dor Pélvica/psicologia , Estudos Prospectivos , Projetos de PesquisaRESUMO
Hypogalactia has a relative high frequency in women having delivered preterm infants, who often have difficulties in maintaining a sufficient production of milk for their infants' needs over prolonged periods of time. Recent studies have shown a potential galactogogue effect of silymarin on milk production in animal models (cows and rats) and in humans (mothers of term newborns); nonetheless, none of the studies conducted on humans consisted of double-blind randomized clinical trials and no data are available concerning mothers who delivered preterm infants. The aim of our study was to assess the efficacy of silymarin (BIO-C®) as galactogogue and its tolerability in mothers who delivered preterm infants. We enrolled 50 mothers at 10±1 days post-partum who had delivered infants at ® and placebo arms. No adverse events were observed in the 2 arms among mothers and infants, and silymarin and its metabolites were not detectable in the analyzed human milk samples. Further investigation on specific patient groups affected by hypogalactia, defined according to stricter criteria, should be planned to assess the efficacy of the product in increasing milk production.
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Galactagogos/uso terapêutico , Transtornos da Lactação/tratamento farmacológico , Lactação/efeitos dos fármacos , Silimarina/uso terapêutico , Adulto , Aleitamento Materno , Método Duplo-Cego , Feminino , Galactagogos/efeitos adversos , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Masculino , Pessoa de Meia-Idade , Silimarina/efeitos adversos , Resultado do Tratamento , Adulto JovemRESUMO
Abstract The age-related decline in ovarian response to gonadotropins has been well known since the beginning of ovarian stimulation in IVF cycles and has been considered secondary to the age-related decline in ovarian reserve. The objective of this study was to establish reference values and to construct nomograms of ovarian response for any specific age to gonadotropins in IVF/ICSI cycles. We analyzed our database containing information on IVF cycles. According to inclusion and exclusion criteria, a total of 703 patients were selected. Among inclusion criteria, there were regular menstrual cycle, treatment with a long GnRH agonist protocol and starting follicle-stimulating hormone (FSH) dose of at least 200 IU per day. To estimate the reference values of ovarian response, the CG-LMS method was used. A linear decline in the parameters of ovarian response with age was observed: the median number of oocytes decreases approximately by one every three years, and the median number of follicles >16 mm by one every eight years. The number of oocytes and growing follicles corresponding to the 5th, 25th, 50th, 75th and 95th centiles has been calculated. This study confirmed the well known negative relationship between ovarian response to FSH and female ageing and permitted the construction of nomograms of ovarian response.
Assuntos
Ovário/fisiologia , Indução da Ovulação/normas , Reprodução/fisiologia , Adulto , Gonadotropina Coriônica/farmacologia , Feminino , Fármacos para a Fertilidade Feminina/farmacologia , Fertilização in vitro/métodos , Fertilização in vitro/normas , Hormônio Foliculoestimulante/farmacologia , Humanos , Idade Materna , Nomogramas , Recuperação de Oócitos/normas , Ovário/efeitos dos fármacos , Indução da Ovulação/métodos , Gravidez , Valores de ReferênciaRESUMO
High serum day 3 FSH levels are associated with poor ovarian reserve and reduced fertility, but the interpretation of FSH values according to age is still not univocal. The purpose of this study was to determine age-dependent reference values in women with regular menstrual cycles and FSH as a guide for specialists. The study was performed at the Department of Mother-Infant of a University-based tertiary care centre. One-hundred ninety-two healthy normal menstruating women were recruited for the study. All patients attended the department on menstrual cycle day 3 for a blood sample for FSH and estradiol determination. A linear relationship between FSH or estradiol serum levels and age was observed. The FSH level increased by 0.11 IU for every year of age (1 IU for every 9 years of age). The values of FSH and estradiol corresponding to the 5th, 25th, 50th, 75th, 95th centiles for any specific age have been calculated. Serum FSH levels need to be interpreted according to age-dependent reference values. Serum FSH levels on 95th centile for any age may represent a warning sign for reduced ovarian reserve.
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Envelhecimento , Estradiol/sangue , Hormônio Foliculoestimulante Humano/sangue , Fase Folicular/sangue , Ovário/crescimento & desenvolvimento , Adeno-Hipófise/crescimento & desenvolvimento , Regulação para Cima , Adolescente , Adulto , Biomarcadores/sangue , Estudos Transversais , Estradiol/metabolismo , Feminino , Hormônio Foliculoestimulante Humano/metabolismo , Humanos , Itália , Modelos Lineares , Medições Luminescentes , Ovário/metabolismo , Adeno-Hipófise/metabolismo , Pré-Menopausa , Valores de Referência , Centros de Atenção Terciária , Adulto JovemRESUMO
The study compares the ability of the PSI (pneumonia severity index), CURB-65 (confusion, urea >7 mol·L(-1), respiratory rate ≥ 30 breaths·min(-1), blood pressure <90 mmHg systolic or ≤ 60 mmHg diastolic, and age ≥ 65 yrs), CURB and CRB-65 scales and the Severe Community-Acquired Pneumonia (SCAP) score to predict 30-day mortality in healthcare-associated pneumonia (HCAP) patients, and analyses differences in the demographics, aetiology and outcomes of community-acquired pneumonia (CAP), HCAP and pneumonia in immunocompromised patients. 629 consecutive patients admitted to a tertiary care university hospital were prospectively categorised as having CAP (n=322) or HCAP (n=307), and the HCAP patients were further sub-divided into those who were immunocompromised (n=219) or immunocompetent (n=88). The 30-day mortality rate was 9.0% in the CAP group and 24.1% in the HCAP group. In the HCAP group, the PSI and SCAP scores had similar prognostic power (area under the curve (AUC) of 0.68 and 0.67, respectively) and performed better than the CURB-65 score (AUC ≤0.62). Among the immunocompetent HCAP patients, the PSI and CURB-65 scores were more sensitive than the others at every threshold, whereas SCAP was more specific than both of these. In the immunocompromised group, the PSI was highly sensitive but poorly specific at all thresholds. Our results suggest that prognostic tools should be designed for subsets of HCAP patients.
Assuntos
Infecção Hospitalar/diagnóstico , Hospedeiro Imunocomprometido , Pneumonia/diagnóstico , Índice de Gravidade de Doença , Idoso , Idoso de 80 Anos ou mais , Infecções Comunitárias Adquiridas/diagnóstico , Feminino , Humanos , Terapia de Imunossupressão , Masculino , Pessoa de Meia-Idade , Estudos ProspectivosRESUMO
We carried out genome-wide association (GWA) studies in inbred mouse strains characterized for their lung tumor susceptibility phenotypes (spontaneous or urethane-induced) with panels of 12,959 (13K) or 138,793 (140K) single-nucleotide polymorphisms (SNPs). Above the statistical thresholds, we detected only SNP rs3681853 on Chromosome 5, two SNPs in the pulmonary adenoma susceptibility 1 (Pas1) locus, and SNP rs4174648 on Chromosome 16 for spontaneous tumor incidence, urethane-induced tumor incidence, and urethane-induced tumor multiplicity, respectively, with the 13K SNP panel, but only the Pas1 locus with the 140K SNP panel. Haplotype analysis carried out in the latter panel detected four additional loci. Loci reported in previous GWA studies failed to replicate. Genome-wide genetic linkage analysis in urethane-treated (BALB/cxC3H/He)F2, (BALB/cxSWR/J)F2, and (A/JxC3H/He)F2 mice showed that Pas1, but none of the other loci detected previously or herein by GWA, had a significant effect. The Lasc1 gene, identified by GWA as a functional element (Nat. Genet., 38:888-95, 2006), showed no genetic effects in the two independent intercross mouse populations containing both alleles, nor was it expressed in mouse normal lung or lung tumors. Our results indicate that GWA studies in mouse inbred strains can suffer a high rate of false-positive results and that such an approach should be used in conjunction with classical linkage mapping in genetic crosses.
Assuntos
Mapeamento Cromossômico , Predisposição Genética para Doença , Estudo de Associação Genômica Ampla/métodos , Desequilíbrio de Ligação , Neoplasias Pulmonares/genética , Polimorfismo de Nucleotídeo Único , Animais , Carcinógenos/administração & dosagem , Modelos Animais de Doenças , Feminino , Regulação da Expressão Gênica , Neoplasias Pulmonares/induzido quimicamente , Masculino , Camundongos , Camundongos Endogâmicos , Uretana/administração & dosagemRESUMO
BACKGROUND AND OBJECTIVE: This was a nationwide prospective study carried out in Italy between 2005 and 2007, involving 34 centers with a neonatal intensive care unit. The study reports the Italian Neonatal Study charts for weight, length, and head circumference of singletons born between 23 and 42 gestational weeks, comparing them with previous Italian data and with the most recent data from European countries. PATIENTS AND METHODS: Single live born babies with ultrasound assessment of gestational age within the first trimester, and with both parents of Italian origin. Only fetal hydrops and major congenital anomalies diagnosed at birth were excluded. The reference set consists of 22,087 girls and 23,375 boys. RESULTS: At each gestational age, boys are heavier than girls by about 4%. Later-born neonates are heavier than firstborn neonates by about 3%. The effects of sex and birth order on length and head circumference are milder. No differences were observed between babies born in central-north Italy and southern Italy. A large variability emerged among European neonatal charts, resulting in huge differences in the percentage of Italian Neonatal Study neonates below the 10th centile, which is traditionally used to define small-for-gestational-age babies. In the last 2 decades prominent changes in the distribution of birth weight emerged in Italy and in the rest of Europe, in both term and preterm neonates. CONCLUSIONS: The existing European neonatal charts, based on more or less recent data, were found to be inappropriate for Italy. Until an international standard is developed, the use of national updated reference charts is recommended.
Assuntos
Peso ao Nascer , Idade Gestacional , Recém-Nascido , Recém-Nascido Pequeno para a Idade Gestacional , Ordem de Nascimento , Estatura , Feminino , Cabeça/anatomia & histologia , Humanos , Itália , Masculino , Estudos Prospectivos , Valores de Referência , Fatores SexuaisRESUMO
The interpretation of cranial base injuries has never been investigated from a purely anthropological perspective. Very little exists in forensic literature in order to interpret the significance of cranial base fractures. We analyzed 296 cases of deaths due to skull-brain injuries. The frequency of vault fractures was 75.7% and that of base fractures was 91.9%. We observed the distribution of cases of death according to manner of death and manner of injury and number of fossae involved. These observations were analytically compared to different variables (age, sex, manner of injury, and mode of injury). The study presented the proportion of base fractures associated with vault fractures, and the frequency of absence of base fracture in subjects with no vault fractures. Interesting associations of base fractures to age and manner of death are shown.
Assuntos
Lesões Encefálicas/mortalidade , Base do Crânio/lesões , Fraturas Cranianas/epidemiologia , Acidentes por Quedas/mortalidade , Acidentes de Trânsito/mortalidade , Adolescente , Adulto , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Abuso Físico/estatística & dados numéricos , Distribuição por Sexo , Base do Crânio/patologia , Fraturas Cranianas/patologia , Ferimentos por Arma de Fogo/mortalidade , Adulto JovemRESUMO
AIMS: Migrants from countries in which health and social conditions are unsatisfactory, and their offspring, are becoming a growing component of the western population. Available health data show that their morbidity is at least comparable to that of the host country population, with a significant contribution of chronic diseases as diabetes. The possibility that diabetes shows different features in undocumented migrants is the hypothesis that we tried to investigate in this study. METHODS: We retrospectively analysed the data of 413 patients with type 2 diabetes mellitus (T2DM): 222 patients followed in a diabetes clinic at a University Hospital and 191 undocumented migrants cared for by a Charity in Milan, Italy. RESULTS: We found that the onset of the disease was earlier in migrants; they showed a significant lower body mass index (BMI) and had lower socioeconomic conditions. They had a worse glycaemic control. The pattern of complications was also different between the two groups, with cardiovascular complications more frequent in Italians. Finally, also pharmacologic treatment differed significantly. CONCLUSIONS: Age of onset, clinical manifestations and complications of T2DM in undocumented migrants and natives may show significant differences. This is important for both epidemiological and clinical reasons. If these preliminary observations are confirmed by larger studies, we can conclude that undocumented migrants should be screened for T2DM earlier than natives, and that therapies should be tailored to the specific features of their disease.