Women-centred workplace health promotion interventions: a systematic review.

AIM: To analyse workplace health promotion interventions implemented exclusively for the female population. BACKGROUND: The differences in biological, psychological and social characteristics, as well as the type of work carried out by men and women, make it necessary for workplace health promotion to be specific for each group. This study focussed on working women. INTRODUCTION: Workplace health promotion interventions are centred on increasing the well-being and health of the employees. Occupational health nurses play an essential role in the implementation of these interventions. METHODS: A systematic review was carried out using the MEDLINE and Scopus databases, following the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines. RESULTS: Twelve articles met the inclusion criteria. Two lines of interventions were found: (1) promotion of breastfeeding (16.6%) and (2) promotion of physical activity and other healthy lifestyles (83.4%). The interventions studied underlined promoting breastfeeding, preventing a sedentary lifestyle, improving body composition, reducing cardiovascular risk, relieving premenstrual symptoms, time of breastfeeding after returning to work, and showing favourable results. DISCUSSION: The lack of studies on the subject and the medium-to-low quality of the articles included in the review have made it difficult to analyse workplace health promotion interventions, making it necessary to continue research in this area. CONCLUSION: There are very few occupational health promotion interventions targeting women (1.9%), and the majority of them focus on promoting physical activity. It is worrying that specific aspects of women's health are poorly addressed. IMPLICATIONS FOR NURSING PRACTICE AND HEALTH POLICY: The work of the occupational nurse essentially is to guarantee the health of women in the workplace, being the key figure in the research and development of gender-related policies in the field of public health.

Desarrollo neuromadurativo en andadores de puntillas de edad preescolar / Neurodevelopment in preschool idiopathic toe-walkers

Introducción: La marcha de puntillas idiopática, considerada un diagnóstico de exclusión de alteraciones neurológicas y ortopédicas, se ha relacionado con alteraciones en diversas áreas del desarrollo neuromadurativo. La evaluación del neurodesarrollo en edades tempranas mediante un test específico podría mejorar el seguimiento y el abordaje terapéutico de estos niños. El objetivo de este trabajo es analizar las características neuromadurativas de los andadores de puntillas (AP) de edad preescolar en relación con un grupo control (GC). Método: Mediante un estudio descriptivo transversal se han comparado los posibles factores de riesgo, las características del neurodesarrollo y los resultados del Cuestionario de Madurez Neuropsicológica Infantil (CUMANIN) de un grupo de 56 AP de entre 3 y 6 años con un GC de 40 niños. Resultados: Entre los AP había un mayor porcentaje de varones (p=0,008) y este grupo presentaba un porcentaje significativamente mayor de antecedentes familiares (p=0,000) y de factores de riesgo biológico durante el período perinatal (p=0,032). Los padres manifestaron que los AP mostraban una torpeza motriz significativamente superior (59%; p=0,009). Los AP obtuvieron en el CUMANIN puntuaciones significativamente inferiores en las escalas de psicomotricidad (p=0,001) y memoria (p=0,001), y en el desarrollo verbal (p=0,000), no verbal (p=0,026) y total (p=0,004), además de una menor definición de la lateralidad podálica (p=0,047). Conclusiones: Los AP de la muestra estudiada presentan características neuromadurativas específicas que apoyan la consideración de la marcha de puntillas como marcador de problemas del desarrollo, aunque son necesarios más estudios (AU)

Introduction: Idiopathic toe walking, a differential diagnosis for neurological and orthopaedic disorders, has been associated with neurodevelopmental alterations. Neurodevelopmental assessment at early ages using specific tests may improve management and follow-up of these patients. The aim of our study is to analyse the neurodevelopmental characteristics of preschool idiopathic toe-walkers (ITW) by comparing them to a control group. Method: Our descriptive cross-sectional study compared possible risk factors, neurodevelopmental characteristics, and scores on the Child Neuropsychological Maturity Questionnaire (CUMANIN) between a group of 56 ITWs aged 3 to 6 and a control group including 40 children. Results: The proportion of males was significantly higher in the ITW group (P=.008). The percentage of patients with a family history (P=.000) and biological risk factors during the perinatal period (P=.032) was also higher in this group. According to the parents’ reports, motor coordination in ITWs was significantly poorer (59%; P=.009). ITWs scored significantly lower on CUMANIN subscales of psychomotricity (=0,001) and memory (P=.001), as well as in verbal development (P=.000), non-verbal development (P=.026), and overall development (P=.004). Foot preference was less marked in the ITW group (P=.047). Conclusions: The neurodevelopmental characteristics of our sample suggest that idiopathic toe walking is a marker of neurodevelopmental impairment. However, further studies are necessary to confirm these findings (AU)

La atención emocional y espiritual al niño en la UCIP / No disponible

No disponible

Neurodevelopment in preschool idiopathic toe-walkers. / Desarrollo neuromadurativo en andadores de puntillas de edad preescolar.

INTRODUCTION: Idiopathic toe walking, a differential diagnosis for neurological and orthopaedic disorders, has been associated with neurodevelopmental alterations. Neurodevelopmental assessment at early ages using specific tests may improve management and follow-up of these patients. The aim of our study is to analyse the neurodevelopmental characteristics of preschool idiopathic toe-walkers (ITW) by comparing them to a control group. METHOD: Our descriptive cross-sectional study compared possible risk factors, neurodevelopmental characteristics, and scores on the Child Neuropsychological Maturity Questionnaire (CUMANIN) between a group of 56 ITWs aged 3 to 6 and a control group including 40 children. RESULTS: The proportion of males was significantly higher in the ITW group (P=.008). The percentage of patients with a family history (P=.000) and biological risk factors during the perinatal period (P=.032) was also higher in this group. According to the parents' reports, motor coordination in ITWs was significantly poorer (59%; P=.009). ITWs scored significantly lower on CUMANIN subscales of psychomotricity (=0,001) and memory (P=.001), as well as in verbal development (P=.000), non-verbal development (P=.026), and overall development (P=.004). Foot preference was less marked in the ITW group (P=.047). CONCLUSIONS: The neurodevelopmental characteristics of our sample suggest that idiopathic toe walking is a marker of neurodevelopmental impairment. However, further studies are necessary to confirm these findings.

Riesgos ortopédicos en los niños andadores de puntillas de edad preescolar / Orthopedic risks in preschool idiopathic toe-walkers

Introducción: La marcha de puntillas idiopática, considerada un diagnóstico de exclusión de alteraciones neurológicas y ortopédicas, se ha relacionado con diversas alteraciones ortopédicas del pie y del tobillo. Aunque la limitación en la movilidad del tobillo resulta el criterio de valoración e indicación terapéutica más empleado, su evaluación en edades tempranas y la comparación con valores de normalidad no han sido apenas estudiadas. El objetivo de este trabajo es verificar si la evaluación precoz de los niños andadores de puntillas (AP) pone de manifiesto características clínicas diferenciales que indiquen riesgos ortopédicos. Pacientes y métodos: Mediante un estudio descriptivo transversal se ha comparado la estática y la movilidad de rodilla, tobillo y pie de un grupo de 56 AP de 3-6 años de edad con un grupo de 40 niños de un grupo control (GC). Resultados: Se descartó en los AP (el 69,6% varones; p= 0,008) un flexo de rodilla, pero presentaron una menor movilidad pasiva del tobillo con la rodilla flexionada (p <0,05) y una mayor disminución del apoyo del talón en bipedestación que los niños del GC (p= 0,000). Los AP mostraron también una mayor pronación del pie, corroborada en un mayor valgo de calcáneo, ángulo de pronación, caída del navicular y pico de pronación en la huella plantar (p <0,05). Conclusiones: La evaluación clínica de los AP en edad preescolar mediante pruebas específicas facilita la detección de riesgos ortopédicos, lo que podría permitir establecer medidas específicas para evitar su posible evolución negativa (AU)

Introduction: Idiopathic tiptoe gait, considered as a diagnosis of exclusion of neurological and orthopedical diseases, has been related to various foot and ankle orthopedic alterations. The limitation of the ankle movement range is the main guideline for evaluation and therapeutical indication. However, its early assessment and its comparison with normality values have been seldom studied. The aim of the present work is to verify if the early evaluation of toe walkers (TW) reveals specific clinical characteristics denoting orthopedical risks. Patients and methods: A cross-sectional study was conducted to compare the posture and the movement of knee, ankle and foot of a group of 56 TW and a group of 40 controls (CG), aged 3 to 6 years old. Results: TW children, 69.6% of them boys (p= 0.008), did not suffer a knee flexum, but they demonstrated a lower passive ankle mobility measured with the knee flexed (p <0.05) and a diminution of the heel support while standing than CG children (p= 0.000). TW also showed more pronation of the foot, objectified in a higher calcaneus valgus, pronation angle, navicular drop and pronation peak observed in the footprint (p <0.05). Conclusions: Clinical evaluation in preschool ITW by means of specific measures helps detecting orthopedical risks. It could allow to set particular strategies to prevent their possible negative evolution (AU)

Notificación de una reacción adversa al 99mTc-nanocoloide de albúmina / Notification of an adverse effect to human albumin 99mTc-nanocolloid

Las reacciones alérgicas a los nanocoloides de albúmina (NA) son poco frecuentes. La mayoría de ellas no son potencialmente graves y en algunos casos pueden llegar a requerir tratamiento con antihistamínicos. Presentamos un caso de una paciente con carcinoma de mama derecha ductal infiltrante grado II, a la que se le realizó linfogammagrafía para la detección de ganglio centinela presentando una reacción de hipersensibilidad tipo I, posterior a la administración de 99mTc-NA, que cedió espontáneamente sin secuelas posteriores(AU)

Allergic reactions to albumin nanocolloid are rare. Most of them are not potentially serious and in some cases treatment with antihistamines may be needed. We present a case of a patient with grade II right breast ductal carcinoma, in whom a lymphoscintigraphy was performed for sentinel lymph node detection. She had a type I hypersensitivity reaction following the administration of 99mTc-albumin nanocolloid, which abated spontaneously without subsequent sequels(AU)

[Notification of an adverse effect to human albumin (99m)Tc-nanocolloid]. / Notificación de una reacción adversa al (99m)Tc-nanocoloide de albúmina.

Allergic reactions to albumin nanocolloid are rare. Most of them are not potentially serious and in some cases treatment with antihistamines may be needed. We present a case of a patient with grade II right breast ductal carcinoma, in whom a lymphoscintigraphy was performed for sentinel lymph node detection. She had a type I hypersensitivity reaction following the administration of (99m)Tc-albumin nanocolloid, which abated spontaneously without subsequent sequels.

Hallazgo incidental de un meningioma en placa en un paciente con adenocarcinoma de próstata / Incidental finding of a meningioma-en-plaque in a patient with prostate adenocarcinoma

Los meningiomas en placa se caracterizan por presentar un área de hiperostosis y constituyen un verdadero reto diagnóstico, sobre todo cuando se asocian a patologías de base, pudiendo imitar otras entidades clínicas. Presentamos un caso de un meningioma en placa de gran extensión como hallazgo gammagráfico casual en el seguimiento de un paciente con adenocarcinoma de próstata confirmado histológicamente. A propósito del caso discutimos el valor de la gammagrafía ósea en relación con otras técnicas de imagen(AU)

Meningiomas-en-plaques (MEP) are characterized by an area of hyperostosis and constitute a diagnostic challenge, especially when associated with other underlying conditions, and may mimic other clinical conditions. We present a case of a large MEP, which was an incidental finding on a scintigraphy study of a patient with prostate adenocarcinoma, this finding being histologically confirmed. In regards to the case, we discuss the utility of the bone scintigraphy (BS) in relationship to other imaging modalities(AU)

[Incidental finding of a meningioma-en-plaque in a patient with prostate adenocarcinoma]. / Hallazgo incidental de un meningioma en placa en un paciente con adenocarcinoma de próstata.

Meningiomas-en-plaques (MEP) are characterized by an area of hyperostosis and constitute a diagnostic challenge, especially when associated with other underlying conditions, and may mimic other clinical conditions. We present a case of a large MEP, which was an incidental finding on a scintigraphy study of a patient with prostate adenocarcinoma, this finding being histologically confirmed. In regards to the case, we discuss the utility of the bone scintigraphy (BS) in relationship to other imaging modalities.

Impaired regulation of the TNF-alpha converting enzyme/tissue inhibitor of metalloproteinase 3 proteolytic system in skeletal muscle of obese type 2 diabetic patients: a new mechanism of insulin resistance in humans.

AIMS/HYPOTHESIS: TNF-alpha levels are increased in obesity and type 2 diabetes. The regulation of TNF-alpha converting enzyme (TACE) and its inhibitor, tissue inhibitor of metalloproteinase 3 (TIMP3), in human type 2 diabetes is unknown. METHODS: We examined TACE/TIMP3 regulation: (1) in lean and obese normal glucose tolerant (NGT) individuals and in type 2 diabetes patients; (2) following 6 h of lipid/saline infusion in NGT individuals; and (3) in cultured human myotubes from lean NGT individuals incubated with palmitate. Insulin sensitivity was assessed by a euglycaemic clamp and TACE/TIMP3 was evaluated by confocal microscopy, RT-PCR, western blotting and an in vitro activity assay. Circulating TNF-alpha, TNF-alpha-receptor 1 (TNFR1), TNF-alpha-receptor 2 (TNFR2), IL-6 receptor (IL-6R), vascular cell adhesion molecule (VCAM) and intercellular adhesion molecule (ICAM) levels were evaluated. RESULTS: TIMP3 levels were reduced and TACE enzymatic activity was increased in type 2 diabetes skeletal muscle. TACE expression, and TACE, TNF-alpha, TNFR1 and IL-6R levels were increased in type 2 diabetes, and positively correlated with insulin resistance. A 6 h lipid infusion into NGT individuals decreased insulin-stimulated glucose metabolism by 25% with increased TACE, decreased expression of the gene encoding TIMP3 and increased IL-6R release. Palmitate induced a dramatic reduction of TIMP3 and increased the TACE/TIMP3 ratio in cultured myotubes. CONCLUSIONS/INTERPRETATION: TACE activity was increased in skeletal muscle of obese type 2 diabetes patients and in lipid-induced insulin resistance. We propose that dysregulation of membrane proteolysis by TACE/TIMP3 of TNF-alpha and IL-6R is an important factor for the development of skeletal muscle insulin resistance in obese type 2 diabetes patients by a novel autocrine/paracrine mechanism.

Reduction in hematocrit and hemoglobin following pioglitazone treatment is not hemodilutional in Type II diabetes mellitus.

Peripheral edema, mild weight gain, and anemia are often observed in type II diabetic patients treated with thiazolidinediones (TZDs). Small decreases in hemoglobin (Hb) and hematocrit (Hct) appear to be a class effect of TZDs and are generally attributed to fluid retention, although experimental data are lacking. We analyzed 50 patients with type II diabetes mellitus undergoing either placebo or pioglitazone (PIO, 45 mg/day) for 16 weeks. Before and after therapy, we measured Hb/Hct and used (3)H(2)O and bioimpedance to quantitate total body water (TBW), extracellular water, and fat-free mass. The majority (89%) of the increment in body weight was accounted for by increased body fat. Hb and Hct fell significantly in the PIO group (-0.9+/-0.2 g/dl, -2.4+/-0.5%, both P<0.0001), without change in TBW. A decline in white blood cell (-0.8+/-0.1 x 10(3)/mm(3), P<0.0001) and platelet (-15+/-6 x 10(3)/mm(3), P<0.02) counts was seen after PIO. In conclusion, the small decreases in Hb/Hct observed after 16 weeks of PIO treatment cannot be explained by an increase in TBW. Other causes, such a mild marrow suppressive effect, should be explored.

Aplasia medular asociada al uso de ticlopidina / Bone marrow aplasia associated to the use of ticlopidine: report of one case

We report a 58 years old male that developed a bone marrow aplasia associated to the use of ticlopidine, prescribed after coronary artery stenting. The patient developed a pneumonia as a complication. He was admitted to the Intermediate Treatment Unit, receiving wide spectrum antimicrobial therapy and a granulocyte colony stimulating factor (Neupogen(r)) with favourable response. Ticlodipine is an effective anti-platelet agent, but has serious hematological and other side effects. Its prescription requires a close follow up and search for complications

Testicular maturation in the sheep bot fly Oestrus ovis.

The process of testicular maturation in relation to intrapuparial development was studied in the sheep nasal bot fly, Oestrus ovis L. (Diptera: Oestridae). After formation of the puparium during larval-pupal apolysis and the cryptocephalic pupal stage (approximately 24-72 h), spermatogonia had undergone mitotic divisions and sperm cysts had been formed. Five days after pupariation, spermatogonia transformed into primary spermatocytes during the phanerocephalic pupal stage, and secondary spermatocytes first appeared during the pupal-adult apolysis. Secondary spermatocytes began undergoing the second meiotic division by day 8 (transparent-eye pharate adult stage). By days 9 and 10, round spermatids were present and began to elongate by day 11. By day 12, the first bundles of tailed spermatozoa had appeared. By day 15 (the yellow-orange eye pharate adult stage), round, elongated, tailed and bundled spermatids were predominant and by day 17 differentiating spermatids occupied nearly 35% of the testicular cavity, and 60% was occupied by free sperm. By day 21 (the red-brown eye pharate adult stage), spermatozoa colonized the seminal vesicle. At emergence (approximately day 22), a complement of free sperm occupied the testis and the seminal vesicle, but groups of developing cells frequently remained in certain zones. Spermatogenesis was carried out after pupariation and spermiogenesis occurred during the pharate adult stage. After emergence, males possessed fully formed spermatozoa ready for ejaculation.

Regulation of a wheat actin-depolymerizing factor during cold acclimation.

We have previously shown that the wheat (Triticum aestivum) TaADF gene expression level is correlated with the plants capacity to tolerate freezing. Sequence analysis revealed that this gene encodes a protein homologous to members of the actin-depolymerizing factor (ADF)/cofilin family. We report here on the characterization of the recombinant TaADF protein. Assays for ADF activity showed that TaADF is capable of sequestering actin, preventing nucleotide exchange, and inducing actin depolymerization. In vitro phosphorylation studies showed that TaADF is a substrate for a wheat 52-kD kinase. The activity of this kinase is modulated by low temperature during the acclimation period. Western-blot analyses revealed that TaADF is expressed only in cold-acclimated Gramineae species and that the accumulation level is much higher in the freezing-tolerant wheat cultivars compared with the less tolerant ones. This accumulation was found to be regulated by a factor(s) encoded by a gene(s) located on chromosome 5A, the chromosome most often found to be associated with cold hardiness. The induction of an active ADF during cold acclimation and the correlation with an increased freezing tolerance suggest that the protein may be required for the cytoskeletal rearrangements that may occur upon low temperature exposure. These remodelings might be important for the enhancement of freezing tolerance.

Sépsis biliar por colédocolitiasis / Biliary Sépsis by colédocolitiasis

Se reporta el caso de una paciente de sexo femenino de 39 años que presentó colédocolitiasis, complicada con colangitis y posteriormente formación de abscesos piógenos múltiples en el hígado. El ECO demostró colelitiasis, vías biliares dilatadas, abscesos hepáticos múltiples. La TC con contraste reportó hepatomegalia con imagen sugestiva de abscesos múltiples en hígado, dilatación de las vías biliares intra y extrahepáticas y la vesícula biliar con aspecto litiásico en su interior. La paciente fue intervenida quirúrgicamente siendo el resultado final favorable. La mayoría de los cálculos del colédoco han migrado de la vesícula y se relacionan con la colecistitis litiásica. Los cálculos provocan obstrucción biliar...

Characterization of the thiazide-sensitive Na(+)-Cl(-) cotransporter: a new model for ions and diuretics interaction.

The thiazide-sensitive Na(+)-Cl(-) cotransporter (TSC) is the major pathway for salt reabsorption in the apical membrane of the mammalian distal convoluted tubule. When expressed in Xenopus laevis oocytes, rat TSC exhibits high affinity for both cotransported ions, with the Michaelis-Menten constant (K(m)) for Na(+) of 7.6 +/- 1.6 mM and for Cl(-) of 6.3 +/- 1.1 mM, and Hill coefficients for Na(+) and Cl(-) consistent with electroneutrality. The affinities of both Na(+) and Cl(-) were increased by increasing concentration of the counterion. The IC(50) values for thiazides were affected by both extracellular Na(+) and Cl(-). The higher the Na(+) or Cl(-) concentration, the lower the inhibitory effect of thiazides. Finally, rTSC function is affected by extracellular osmolarity. We propose a transport model featuring a random order of binding in which the binding of each ion facilitates the binding of the counterion. Both ion binding sites alter thiazide-mediated inhibition of transport, indicating that the thiazide-binding site is either shared or modified by both Na(+) and Cl(-).

[Lack of effect of cicletanine and its sulfoconjugated metabolite on the thiazide receptor expressed in Xenopus oocytes]. / Absence d'effet de la ciclétanine et de son métabolite sulfoconjugué sur le récepteur aux thiazides exprimé dans des ovocytes de Xenopus.

UNLABELLED: Although the renal receptor at which cicletanine acts is unknown, cicletanine was assumed to act like thiazide diuretics. Here we tested cicletanine and its natriuretic metabolite, cicletanine-sulfate, for inhibitory activity against the thiazide-sensitive NaCl cotransporter expressed in Xenopus oocytes. The renal thiazide-sensitive NaCl cotransporter was expressed in Xenopus laevis oocytes injected with rat cRNA TSCr (TSCr: thiazide-sensitive cotransporter from rat kidney) and both, racemic (+/-) cicletanine and its sulfoconjugated metabolite were tested for inhibitory activity against oocyte 22Na+ uptake catalyzed by this cotransporter. Polythiazide was used as reference thiazide. Polythiazide fully inhibited NaCl cotransporter function with IC50 approximately 1.2 x 10(-7) M. Conversely, neither cicletanine, nor cicletanine sulfate were able to inhibit such cotransporter, i.e.: a minimum concentration of 10(-4) M of cicletanine was necessary to induce a slight cotransporter inhibition (29.5 +/- 18.2%). Cicletanine sulfate was inactive, even at 10(-4) M. IN CONCLUSION: (i) the natriuretic metabolite of cicletanine (cicletanine sulfate) is unable to inhibit thiazide-sensitive NaCl cotransporter and (ii) inhibition of such cotransporter by cicletanine required concentrations equal or higher than 10(-4) M--concentrations much more higher than urinary therapeutic ones in humans (approximately 10(-6) M). These results clearly demonstrate that cicletanine does not act like thiazide diuretics.

Peripheral nerve soluble esterases are spontaneously reactivated after inhibition by paraoxon: implications for a new definition of neuropathy target esterase.

Soluble extracts of chicken peripheral nerve contain detectable amounts of phenyl valerate esterase (PVase) activity (about 2000 nmol/min per g of fresh tissue). More than 95% of this activity is inhibited in assays where substrate has been added to a preincubated mixture of tissue with the non-neuropathic organophosphorus compound (OP) paraoxon (O,O'-diethyl p-nitrophenyl phosphate): residual activity includes soluble neuropathy target esterase (S-NTE) which, by definition, is considered resistant to long-term progressive (covalent) inhibition by paraoxon. However we have previously shown that paraoxon strongly interacts with S-NTE so interfering with its sensitivity to other inhibitors. We now show that, surprisingly, removal of paraoxon by ultrafiltration ('P' tissue) in order to avoid such an interference results in the reappearance of about 65% of total original soluble PVase activity which is inhibited in the presence of this OP. Although a purely reversible non-progressive inhibition might be suspected, kinetic analysis data show a time-progressive inhibition which suggests that such PVase(s) covalently bind paraoxon. Also a time-dependent recovery due to spontaneous reactivation of the PVase activity was observed after dilution of the inhibitor. Gel filtration chromatography of 'P' tissue in Sephacryl S-300 shows that the reactivated activity is associated with proteins of about 100-kDa mass which include S-NTE and an, as yet, unknown number of other PVases. The implications of these findings in the definition of NTE in a target tissue for the so-called organophosphorus-induced delayed polyneuropathy (OPIDP) are discussed.

Chicken serum albumin hydrolyzes dichlorophenyl phosphoramidates by a mechanism based on transient phosphorylation.

The hydrolyzing activities of O-hexyl O-2,5-dichlorophenyl phosphoramidate (HDCP) and p-nitrophenyl butyrate (p-NPB) in chicken serum had been found to copurify in the same protein, identified as albumin. The hydrolyzing activities of both chicken serum and commercial serum albumins from different species were inhibited in a dose-dependent manner by short chain fatty acids. On simultaneous incubation of chicken serum with HDCP and p-NPB, a competitive interaction was detected between the two substrates. This behavior suggests that both are hydrolyzed in the same albumin active site. When chicken serum was preincubated with one of the substrates, and the latter were withdrawn by large dilution, the hydrolyzing activities with both substrates were found to be reduced. This reduction was in turn dependent upon the time of preincubation with the first substrate. These results suggest that HDCP and p-NPB are hydrolyzed by the same albumin active site, via a mechanism based on transient phosphorylation/acylation of the active site. The proposed hydrolysis mechanism would account for the hydrolytic kinetics of both substrates.