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D’Ovidio F, Kaneda H, Andrade C, Mura M, Takahashi H, Gutierrez C, Hutcheon M, Pierre A, Hadjiliadis D, Chaparro C, Singer L, Waddell T, Liu M, Keshavjee S. Donor lung surfactant protein gene expression predicts early and long-term outcome. J Heart Lung Transplant 2005. [DOI: 10.1016/j.healun.2004.11.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Izquierdo D, Alonso C, Andrade C, Castellote M. Potentiostatic determination of chloride threshold values for rebar depassivation. Electrochim Acta 2004. [DOI: 10.1016/j.electacta.2004.01.034] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Andrade C, Gómez-Alonso J. [Bilateral occipital intraparenchymatous bleeding?]. Neurologia 2003; 18:756; author reply 756-7. [PMID: 14648355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023] Open
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Andrade C. A memorable patient: Straight from the patient's mouth. BMJ : BRITISH MEDICAL JOURNAL 2002. [DOI: 10.1136/bmj.325.7373.1169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Alonso C, Castellote M, Andrade C. Chloride threshold dependence of pitting potential of reinforcements. Electrochim Acta 2002. [DOI: 10.1016/s0013-4686(02)00283-9] [Citation(s) in RCA: 170] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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83
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Wolfe SK, Andrade C, Swinehart JH. Kinetic studies of the pentacyanonitrosylferrate(2-) azide and hydroxylamine reactions. Inorg Chem 2002. [DOI: 10.1021/ic50141a009] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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84
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Andrade C, Jordan RB, Taube H. Exchange of oxygen between carboxylatoamminecobalt(III) complexes and water. Inorg Chem 2002. [DOI: 10.1021/ic50086a004] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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85
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Ribeiro CA, Andrade C, Polanczyk CA, Clausell N. Association between early detection of soluble TNF-receptors and mortality in burn patients. Intensive Care Med 2002; 28:472-8. [PMID: 11967603 DOI: 10.1007/s00134-001-1190-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2001] [Accepted: 11/07/2001] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To describe early sequential profiling of circulating levels of tumor necrosis factor alpha (TNF-alpha), TNF-1 and TNF-2 soluble receptors (sTNFR1 and sTNFR2), and of endothelin (ET-1) in patients with severe burn injury, and its association with mortality. DESIGN Prospective study. SETTING Intensive Care Burn Unit at a community hospital. PATIENTS Twenty patients with total burn surface area (TBSA)> or = 30%. INTERVENTIONS None. MEASUREMENTS AND RESULTS Patients were enrolled within 6 h from the injury. Blood samples were drawn at zero, 6, 12, and 24 h for sequential ELISA measurement of plasma marker levels. Data are expressed as mean+/-SD. Age, TBSA, and inhalation injury were not significantly different between survivors ( n=9; 30+/-13 years, TBSA 40+/-12%) and nonsurvivors ( n=11, 38+/-15 years, TBSA 56+/-20%). sTNFR1 levels were increased in nonsurvivors (2937+/-1676 pg/ml; 4548+/-1436 pg/ml) as compared to survivors (1313+/-561 pg/ml; 2561+/-804 pg/ml) at 6 h and 24 h, respectively ( P=0.01 and 0.002). sTNFR2 levels were significantly increased in nonsurvivors (4617+/-1,876 pg/ml vs 2611+/-1,326 pg/ml) only at 6 h ( P=0.015). TNF-alpha and ET-1 levels were not different between nonsurvivors and survivors. After adjustment for TBSA, sTNFR1 and sTNFR2 remained significantly higher in nonsurvivors. CONCLUSION Early and progressive increase in sTNFR1 and sTNFR2 levels is associated with higher risk for poor outcome in severely burned patients.
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Fernández-San Martín MI, Andrade-Rosa C, Andrade C, Molina JD, Molina J, Muñoz PE, Carretero B, Rodríguez M, Silva A. Validation of the Spanish version of the geriatric depression scale (GDS) in primary care. Int J Geriatr Psychiatry 2002; 17:279-87. [PMID: 11921157 DOI: 10.1002/gps.588] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To estimate the predictive value of the 30-question Geriatric Depression Scale (GDS) in Spanish and calculate the most adequate cut-point for its use in Primary Health Care consultations. METHOD 218 patients over the age of 64 treated at three health centers of Area 10 in Madrid were selected. In the first phase, the subjects completed the GDS, the Mini-Mental State Examination (MMSE) and a questionnaire on health and socio-demographic variables. They were later interviewed using the Geriatric Mental Schedule (GMS), used as the gold standard by doctors who were unaware of the results of the GDS. Two categories were contemplated according to the results of the GMS: cases of depression (diagnosis of psychotic or neurotic depression) and non-psychiatric cases (no psychiatric diagnosis, although isolated symptoms could be present). RESULTS 192 aged subjects were interviewed using the GDS and the GMS. Of these, 103 were considered "non-cases of depression" and 60 others made up the "cases of psychotic/neurotic depression" group. For the most effective cut-point (9/10), sensitivity was 86.7% and specificity 63.1%. Considering a prevalence of depression of 30%, the predictive value for positives was 50.2% and for negatives 91.7%. The Cronbach alpha coefficient was 0.82, and the area below the ROC curve obtained was 0.85. Those patients with cognitive deterioration had a mean GDS score similar to those that did not present deterioration (11.16 vs 10.52; p > 0.05). CONCLUSIONS The Geriatric Depression Scale is valid as a screening test in Primary Care consultations due to its high sensitivity and negative predictive value. The most effective Spanish GDS cut-point (9/10) is lower than that obtained in the original English version (10/11).
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Andrade C. Nortriptyline plus lithium increased time to relapse in unipolar depressed patients who responded to electroconvulsive therapy. EVIDENCE-BASED MENTAL HEALTH 2001. [DOI: 10.1136/ebmh.4.4.117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Andrade C, Alava T, De Palacio IA, Del Poggio P, Jamoletti C, Gulletta M, Montresor A. Prevalence and intensity of soil-transmitted helminthiasis in the city of Portoviejo (Ecuador). Mem Inst Oswaldo Cruz 2001; 96:1075-9. [PMID: 11784925 DOI: 10.1590/s0074-02762001000800008] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We studied the stool samples of 151 school children in a district of the city of Portoviejo (Ecuador) in order to determine the prevalence and intensity of soil-transmitted helminthiasis (STH) and their relationships with anthropometric indices. The samples were analyzed with the semiquantitative Kato-Katz technique and the intensity of infections was categorized as light, moderate or high according to the thresholds set by the World Health Organization. Prevalence of soil transmitted helmintiasis was 65% (92 out of 141 collected samples), Ascaris lumbricoides was the most common STH (63%) followed by Trichuris trichiura (10%) and hookworm (1.4%). Heavy intensity infections were found in 8.5% of the stool samples, with T. trichiura showing higher worm burdens than A. lumbricoides. Sixteen percent of the children were below the third percentile for weight (wasted), while 27% were below the third percentile for height (stunted). A significant relationship was found between the worm burden and the degree of stunting. This study suggests that the periodic administration of an antihelminthic drug should be targeted to preschool and school children to allow a normal growth spurt and prevent stunting.
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Andrade C, Alwarshetty M, Sudha S, Suresh Chandra J. Effect of innate direction bias on T-maze learning in rats: implications for research. J Neurosci Methods 2001; 110:31-5. [PMID: 11564522 DOI: 10.1016/s0165-0270(01)00415-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Adult, male Wistar rats showed substantial left (22.2%) or right (52.8%) bias in spontaneous arm preference in the T-maze; this bias was consistent over 2 days of testing separated by a 30 day interval. Left and right biased rats learnt very rapidly when trained to enter the arm ipsilateral to the bias; learning was significantly poorer or did not occur in the contralateral arm. This contralateral learning difficulty was particularly evident when transfer of learning was assessed. Right-biased rats were more impaired in contralateral learning than left-biased rats. Unbiased rats (25%) also showed learning difficulties. This study has important implications for spatial tasks of learning and memory; with specific reference to the T maze, it is concluded that animals should be preselected for capacity to learn in both arms, randomization into experimental and control groups should be stratified for spontaneous arm bias, and original learning should be directed towards the contralateral arm while transfer of learning, if required, can be directed into the ipsilateral arm.
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Abstract
Phenylephrine is a nonselective alpha-receptor agonist. This study examined whether the administration of phenylephrine immediately before electroconvulsive shocks (ECS) attenuated ECS-induced retrograde amnesia. Adult male Wistar rats received phenylephrine (0.25 mg/kg i.p.) or saline 3 min before each of three once-daily true or sham ECS. Retention of pre-ECS learning was studied 1 day after the ECS course using a passive avoidance task. Phenylephrine increased seizure duration in ECS-treated rats, and also enhanced recall in both true and sham ECS groups. The latter finding suggests that phenylephrine nonspecifically improves cognitive functions, perhaps through adrenergic mechanisms that improve memory consolidation and storage. Since phenylephrine increases blood pressure, its cognitive effects also weaken the hypothesis that ECT-induced cognitive impairment results from the seizure-related hypertensive surge.
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Andrade C. Confusion and dysphoria with low-dose topiramate in a patient with bipolar disorder. Bipolar Disord 2001; 3:211-2. [PMID: 11552960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
BACKGROUND Topiramate, a newer antiepileptic agent, may benefit several neurological and psychiatric states, including bipolar disorder. CASE REPORT A physically healthy, stockily built, 47-year-old, hypomanic Asian male with a >20-year history of uneventful use of psychotropic agents received topiramate in a dose that was stepped up to 100 mg/day across 10 days. He developed dysphoria, confusion, word-finding difficulties, and difficulties in maintaining a train of thought; the symptoms vanished within a week of drug discontinuation, and reappeared 1-2 days after rechallenge at a dose of 25 mg/day. CONCLUSION It appears that, while confusion is usually a dose-dependent adverse effect of topiramate, certain patients may idiosyncratically develop this adverse effect at very low doses.
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Andrade C, Madhavan AP, Kishore ML. Testing logical memory using a complex passage : development and standardization of a new test. Indian J Psychiatry 2001; 43:252-6. [PMID: 21407864 PMCID: PMC2956151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Several passages are available to test verbal (logical) memory. Those standardized for use in India are, however, short and simple. As a result, limited dispersion of scores, or ceiling effects, are observed when these tests are administered to young and highly educated populations. This study presents an exercise in the development and standardization of a longer and more complex passage. The passage was administered to 121 residents of Bangalore and 92 residents of Cochin. Significant effects of age decade, gender, and city were observed on memory performances. Group data are presented for each decade of life; these have potential normative value. It is suggested that this test will be useful when assessing populations in whom the conventional passages fail to provide adequate dispersion, or result in ceilling effects.
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Andrade C, Rao NS. Manic stupor. Indian J Psychiatry 2001; 43:285-6. [PMID: 21407873 PMCID: PMC2956160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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Abstract
BACKGROUND Rhinotillexomania is a recent term coined to describe compulsive nose picking. There is little world literature on nose-picking behavior in the general population. METHOD We studied nose-picking behavior in a sample of 200 adolescents from 4 urban schools. RESULTS Almost the entire sample admitted to nose picking, with a median frequency of 4 times per day; the frequency was > 20 times per day in 7.6% of the sample. Nearly 17% of subjects considered that they had a serious nose-picking problem. Other somatic habits such as nail biting, scratching in a specific spot, or pulling out of hair were also common; 3 or more such behaviors were simultaneously present in 14.2% of the sample, only in males. Occasional nose bleeds complicating nose picking occurred in 25% of subjects. Several interesting findings in specific categories of nose pickers were identified. CONCLUSION Nose picking is common in adolescents. It is often associated with other habitual behaviors. Nose picking may merit closer epidemiologic and nosologic scrutiny.
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Andrés N, Rodríguez MJ, Andrade C, Rowe W, Quirion R, Mahy N. Increase in AMPA receptors in aged memory-impaired rats is not associated with increase in monoamine oxidase B levels. Neuroscience 2001; 101:807-10. [PMID: 11113330 DOI: 10.1016/s0306-4522(00)00459-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Aged rats may be behaviorally classified as either cognitively impaired or unimpaired based upon their performance in the Morris water maze task. In aged Long-Evans rats, emergence of functional deficits has been related to the increase in the alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptor subtype in most hippocampal subfields, not observed in other brain structures. As AMPA receptors expressed in astrocytes may participate in the delayed and long-term glial response to injury, we investigated whether astrocytes participate in the increase of AMPA receptor observed in these aged rats. To this end, distribution of monoamine oxidase B, used as an astroglial marker, was characterized by quantitative autoradiography in the hippocampus and septum of young adults (six months) and aged (24-25 months) rats using [3H]lazabemide. Specific binding to brain sections of young, aged unimpaired, and aged impaired animals were calculated densitometrically. Compared to young animals, all hippocampal subfields in the aged unimpaired group showed a significant age-related increased labeling, which was not present in the aged impaired group. This contrasts with the increased glial transcription described in this last group. We propose that increase in AMPA receptors in the aged memory-impaired animals may be related to an atypic astrocytic reactivity.
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Abstract
Previous research found that the administration of verapamil and felodipine immediately before electroconvulsive shocks (ECS) attenuated ECS-induced retrograde amnesia. This study examined whether sodium nitroprusside, an antihypertensive drug that does not affect calcium channels, has a similar action. Adult male Sprague-Dawley rats received nitroprusside (0.5 mg/kg ip) or saline 3 minutes before each of three once-daily true or sham ECS. Retention of pre-ECS learning was studied 1 day after ECS using a passive avoidance task. Nitroprusside was associated with increased seizure duration in ECS-treated rats, and with enhanced recall in both true and sham ECS groups. The latter finding suggests that nitroprusside nonspecifically improves cognitive functions, and does not support the hypothesis that ECS-induced cognitive impairment is a result of blood-brain barrier breach. Nitric oxide mechanisms may underlie the benefits purveyed by nitroprusside.
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Mahy N, Andrés N, Andrade C, Saura J. Age-related changes of MAO-A and -B distribution in human and mouse brain. NEUROBIOLOGY (BUDAPEST, HUNGARY) 2001; 8:47-54. [PMID: 11008877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Age-related changes of MAO-A and -B were studied in human and BL/C57 mouse brain areas (substantia nigra, putamen and cerebellum). [3H]Ro41-1049 and [3H]lazabemide were used as selective radioligands to image and quantify MAO-A and MAO-B respectively by enzyme autoradiography. MAO-A binding was higher in mouse, whereas MAO-B binding was higher in human. With aging, mouse MAO-A was significantly reduced between 4 and 8 weeks and remained unchanged until 19 months followed by a slight increase between 19 and 25 months. In contrast, no clear variation was observed in humans between the age of 17-93 years. In most of the structures studied a clear age-related increase in MAO-B was observed beginning in mouse brain at 4 weeks, whereas in human tissue this increase started at the age of 50-60 years. These results show marked differences in the levels and variations of mouse and human MAO-A and -B associated with aging and should be taken into account when extrapolating experimental data from mouse to human.
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Ribeiro CA, Tarso L, Busnello GR, Alves S, Andrade C, Clausell N. Soluble receptors of tumor necrosis factor-α: early predictors of mortality in patients with severe burn injury. Crit Care 2001. [PMCID: PMC3300996 DOI: 10.1186/cc1429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Hegg R, Costa MA, Perdicaris M, Delgado GL, Cabral-Filho S, Malzyner A, Caponero R, Yamagushi N, Novaes N, Anelli A, Correa M, Nader L, Andrade C. A phase II trial of fractionated vinorelbine/doxorubicin as first-line therapy for advanced breast cancer. Curr Med Res Opin 2001; 16:225-34. [PMID: 11268706 DOI: 10.1185/030079901750176726] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In western countries breast cancer is still the leading cause of death of women. Very promising results have been obtained by combining vinorelbine and doxorubicin, two of the most active drugs in metastatic breast cancer. However, despite the activity reported, this combination has shown a 10% rate of grade 2-4 cardiac toxicity, mainly due to the total cumulative doses of anthracycline delivered. The aim of this study was to divide the total dose of doxorubicin into two administrations on days 1 and 8, in order to cut down its toxicity while maintaining the same activity. Fifty-two chemotherapy naïve patients with metastatic breast cancer entered into the study and were treated with vinorelbine 25 mg/m2 plus doxorubicin 25 mg/m2 both on days 1 and 8 every three weeks. Fifty-one patients were eligible and evaluable for toxicity while 47 of them were evaluable for activity. Haematological toxicity was predominantly related to neutropenia, with grade 3/4 in 16% of cycles. Non-haematological toxicity was represented by alopecia grade 3 (which affected 65% of the patients), local phlebitis and severe constipation. No clinically significant cases of neuropathy or cardiac dysfunction were seen. With regard to activity, 38 out of 47 patients (80%) responded to therapy, nine of them achieving complete responses (19%). Median response duration was 16 months and the median overall survival was 22.7 months. We conclude that the fractionated administration of vinorelbine and doxorubicin is associated with excellent haematological and non-haematological tolerability (especially as regards cardiac toxicity), coupled with high levels of activity comparable to those observed using regimens based on unfractionated administration of treatment.
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