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1.
Prog Urol ; 33(17): 1092-1100, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37798160

RESUMEN

BACKGROUND: In a previous article, we have underlined the emerging level of evidence for the effectiveness of a more comprehensive functional physical therapy than solely pelvic floor muscles training (PFMT) for men after radical prostatectomy (RP). More and more authors suggest that physiotherapy programs should not focus only on the side effect of continence, but more generally on the interaction of continence disorders with all other side effects related to patient's physical and emotional functioning. RESEARCH QUESTION: The aims of this narrative review are to highlight rehabilitation approaches unrelated to analytical PFMT that would seem relevant to consider in the future for post-RP men. METHOD: Our narrative review sought to map the body of literature relevant to the primary objective (non-PFMT), supplementing the data from our previous review with additional recent articles that were not eligible due to not meeting the inclusion criteria for a systematic review. RESULTS: After full text screening, 13 interventional studies have been selected. Intervention strategies were based on five major type of exercises: flexibility, synergism & co-activation, coordination & movement control, strength & endurance, aerobic & games therapy. Most of the studies of this narrative review focused on synergies, co-activations and movement control techniques that emphasized the deep abdominal muscles and PFMs reflexive activation. The wide variety of countries represented in the 13 studies with consistent results point to the potential effectiveness and replicability across various socio-cultural, ethnical, or religious contexts. CONCLUSION: We found 13 studies from 9 different countries that provide a more complete rehabilitation approach than PFMT alone in men post-RP. Intervention strategies were built around five main types of exercises, with the majority of them emphasizing synergies, co-activations, and movement control techniques. In light of these data, we hope that future research will enable us to offer the most relevant and patient-centered physiotherapy treatment.


Asunto(s)
Incontinencia Urinaria , Humanos , Masculino , Terapia por Ejercicio/métodos , Diafragma Pélvico/fisiología , Modalidades de Fisioterapia , Prostatectomía/efectos adversos , Incontinencia Urinaria/terapia , Incontinencia Urinaria/rehabilitación
2.
Prog Urol ; 32(7): 525-539, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35676190

RESUMEN

INTRODUCTION: Radical prostatectomy (RP) can generate multidimensional physiological changes, like decrease in physical and emotional functioning, as well as Health Related Quality of Life (HRQoL). However, only pelvic floor muscle training (PFMT) is commonly recommended as conservative treatment after RP. More comprehensive interventions than only PFMT, such as physiotherapy promoting general coordination, flexibility, strength, endurance, fitness and functional capacity may seem more relevant and patient-centered. AIM OF THE REVIEW: Our aim was to evaluate whether a more Comprehensive Functional Physical Therapy (CFPT) than PFMT alone, focused on lower limb and lumbo-pelvic exercises, would improve physical capacities and functions (including urinary continence (UI)), emotional functions and HRQoL in patients after RP. EVIDENCE ACQUISITION: A systematic review was performed in accordance with the PRISMA reporting guidelines. A literature search was conducted in PubMed, PEDro, Web of Science and Cochrane Library databases from inception to January 2022. The PICO approach was used to determine the eligibility criteria. According to the quality of selected studies, levels of evidence were given. EVIDENCE SYNTHESIS: Eight clinical trials met the eligibility criteria. Regarding UI, all the studies reported positive outcomes for CFPT between pre- and post-physiotherapy (P<0.05). The selected studies reported positive outcomes for physical capacities as well as for physical and emotional functioning, and for HRQoL (P<0.05). CONCLUSION: Current literature indicates that CFPT was shown to be safe, non-invasive, and particularly effective in terms of UI recovery. CFPT could result in more positive outcomes, including physical capacities, physical and emotional functioning and HRQoL, than PFMT alone. Further standardized, physiotherapist-guided and well-designed clinical trials conducted by experienced multidisciplinary clinicians are still called for.


Asunto(s)
Diafragma Pélvico , Incontinencia Urinaria , Terapia por Ejercicio/métodos , Humanos , Masculino , Diafragma Pélvico/fisiología , Prostatectomía , Calidad de Vida , Incontinencia Urinaria/rehabilitación , Incontinencia Urinaria/terapia
3.
Biosens Bioelectron ; 172: 112760, 2021 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-33197751

RESUMEN

Surface plasmon resonance (SPR) based sensors allow the evaluation of aqueous and gaseous solutions from real-time measurements of molecular interactions. The reliability of the response generated by a SPR sensor must be guaranteed, especially in substance detection, diagnoses, and other routine applications since poorly handled samples, instrumentation noise features, or even molecular tampering manipulations can lead to wrong interpretations. This work investigates the use of different machine learning (ML) techniques to deal with these issues, and aim to improve and attest to the quality of the real-time SPR responses so-called sensorgrams. A new strategy to describe a SPR-sensorgram is shown. The results of the proposed ML-approach allow the creation of intelligent SPR sensors to give a safe, reliable, and auditable analysis of sensorgram responses. Our arrangement can be embedded in an Intelligence Module that can classify sensorgrams and identify the substances presents in it. Also made it possible to order and analyze interest areas of sensorgrams, standardizing data, and supporting eventual audit procedures. With those intelligence features, the new generation of SPR-intelligent biosensors is qualifying to perform automated testing. A properly protocol for Leishmaniasis diagnosis with SPR was used to verify this new feature.


Asunto(s)
Técnicas Biosensibles , Inteligencia , Aprendizaje Automático , Reproducibilidad de los Resultados , Resonancia por Plasmón de Superficie
4.
Aliment Pharmacol Ther ; 32(1): 43-8, 2010 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-20345510

RESUMEN

BACKGROUND: Cirrhotic patients with spontaneous bacterial peritonitis (SBP) have elevated rates of renal impairment and mortality. It has been shown that cefotaxime plus albumin infusion decrease renal impairment compared with antibiotic treatment alone, in patients with serum bilirubin >4 mg/dL or creatinine >1 mg/dL. AIM: To assess clinical outcomes of high-risk cirrhotic patients with SBP who were treated with antibiotics associated with Gelafundin (polygeline) 4%. METHODS: Twenty nine cirrhotic patients with SBP and serum bilirubin >4 mg/dL or creatinine >1 mg/dL were enrolled. Ceftriaxone was administered in doses of 2 g/day and Gelafundin 4% was given intravenously at 1.5 g/kg of body weight at the time of the diagnosis, followed by 1 g/kg on day 3. Renal impairment was defined as nonreversible deterioration of renal function during hospitalization. RESULTS: Eight patients (27.5%) had basal renal failure. Infection resolved in 28 (96.6%) patients. Renal impairment occurred in four patients (13.8%), and three patients (10.4%) died during hospitalization. Mortality within 90 days after discharge was 34.5% (10 patients). CONCLUSION: The rates of renal impairment and mortality in high-risk patients with SBP suggest that Gelafundin 4% administration given with ceftriaxone may be a less expensive therapeutic alternative to albumin.


Asunto(s)
Antibacterianos/administración & dosificación , Infecciones Bacterianas/tratamiento farmacológico , Ceftriaxona/administración & dosificación , Cirrosis Hepática/tratamiento farmacológico , Peritonitis/tratamiento farmacológico , Sustitutos del Plasma/administración & dosificación , Poligelina/administración & dosificación , Infecciones Bacterianas/mortalidad , Quimioterapia Combinada , Femenino , Humanos , Cirrosis Hepática/mortalidad , Masculino , Persona de Mediana Edad , Análisis Multivariante , Peritonitis/mortalidad , Proyectos Piloto , Medición de Riesgo , Resultado del Tratamiento
5.
Encephale ; 27(2): 143-7, 2001.
Artículo en Francés | MEDLINE | ID: mdl-11407266

RESUMEN

UNLABELLED: Minor Physical Anomalies represent valuable indices of disturbance in early neurodevelopment. They are frequently observed in individuals with various brain disorders, including mental retardation, autism, epilepsy, hyperactivity, foetal alcohol syndrome and schizophrenia. The high prevalence of Minor Physical Anomalies in schizophrenia provides considerable support for a neurodevelopmental model in this disorder. However, studies in large sample using standardised scale are lacking. Such studies are needed in order to confirm their actual frequency and study the clinical correlates or morphological anomalies. OBJECTIVE: The aim of this study was to revise and validate a French version of a scale designed for the evaluation of Minor Physical Anomalies in adult psychiatric patients and notably in patients with schizophrenia. METHODOLOGY: The scale was revised from the Waldrop scale. The choice of items was done on the basis of frequency, reliability in the adult, reliability of rating. Some new items, related to know syndroms with comportmental symptoms were added. Both raters had previously had a short initiation to the rating of the scale. Interrater reliability between two examiners, blind with regards to the diagnosis was evaluated. RESULTS: The interrater reliability was good, with an intraclass correlation coefficient at 0.97. Patients had significantly more minor physical anomalies than comparison subjects, and also more Minor Physical Anomalies than their parents. Fathers and mothers of these schizophrenic patients had significantly more Minor Physical Anomalies than normal comparison subjects. CONCLUSION: Although the evaluation of physical anomalies relies on subjective appreciation of normal vs abnormal, the revised version of minor physical anomalies scale (French version) was found to be a reliable tool, provided that a short initiation to the rating is performed. The scale differentiated schizophrenic patients from their parents, and the latter from the normal controls. A lot of questions remains unanswered concerning the neurodevelopmental hypothesis of schizophrenia. This scale appeared as a useful complementary tool to help in the determination of the developmental phenotypic status of the patients enrolled in pathophysiological studies aiming the identification of developmental factors in schizophrenia.


Asunto(s)
Anomalías Congénitas/genética , Examen Neurológico/estadística & datos numéricos , Esquizofrenia/genética , Adulto , Anciano , Anomalías Congénitas/diagnóstico , Comparación Transcultural , Femenino , Humanos , Masculino , Persona de Mediana Edad , Fenotipo , Escalas de Valoración Psiquiátrica/estadística & datos numéricos , Psicometría , Reproducibilidad de los Resultados , Esquizofrenia/diagnóstico
6.
Int Ophthalmol ; 23(4-6): 395-8, 2001.
Artículo en Inglés | MEDLINE | ID: mdl-11944866

RESUMEN

OBJECTIVE: To study the efficacy of oral fluorescein angiography compared to intravenous (IV) fluorescein angiography in several retinal diseases. PATIENTS AND METHODS: We performed oral fluorescein angiography with a confocal SLO (Heidelberg Retina Angiograph-HRA) in fourteen psychologically challenged individuals and children, all of whom explicitly refused venipuncture. Patient's diagnosis included diabetes, central serous choroidopathy, toxoplasmosis and choroidal neovascularization. A dose of 30 mg/kg body weight of fluorescein was given. RESULTS: We obtained images of adequate quality to allow interpretation in all cases. CONCLUSIONS: Even though the images were not nearly as good as when obtained after IV injection, we conclude that oral fluorescein angiography with SLO is an appropriate alternative in those cases where a venipuncture is contraindicated by medical or psychological reasons.


Asunto(s)
Angiografía con Fluoresceína/métodos , Fluoresceína/administración & dosificación , Oftalmoscopios , Enfermedades de la Retina/diagnóstico , Vasos Retinianos/patología , Administración Oral , Adolescente , Adulto , Anciano , Niño , Femenino , Humanos , Inyecciones Intravenosas , Rayos Láser , Masculino , Persona de Mediana Edad
8.
Int Ophthalmol ; 23(4-6): 413-23, 2001.
Artículo en Inglés | MEDLINE | ID: mdl-11944870

RESUMEN

PURPOSE: To determine whether there are angiographic differences among normal, preperimetric and advanced glaucoma eyes using indocyanine green angiography with SLO. This method was chosen because of its sensibility to detect peripapillary capillary vessels. METHODS: Scanning laser opthalmoscopy was preformed on normal eyes, preperimetric glaucomas and advanced glaucomas. MATERIAL: The authors used a confocal SLO (Heidelberg Retina Angiograph-HRA) CONCLUSION: Several changes may be seen on peripapillary capillary vessels at the different glaucomatous stages. DISCUSSION: In normal subjects HRT shows preservation of the disc/cup area ratio; indocyanine green angiography shows normal prepapillary plexus pattern on the neuroretinal rim and cup. Subjects on glaucomatous preperimetric stage reveal a decrease in the disc/cup area ratio as a result of an increase of the cup area secondary to a reduction of the neuroretinal rim area. ICG at this hipertensive stage shows an increase in prepapillary plexus visualization, which may be a consequence of increased blood flow while autoregulation is still operative. Subjects with advanced glaucoma show prominent decrease in the disc/cup area ratio as well as marked capillary droupout in ICG angiography.


Asunto(s)
Colorantes , Angiografía con Fluoresceína/métodos , Glaucoma/fisiopatología , Verde de Indocianina , Oftalmoscopía/métodos , Disco Óptico/irrigación sanguínea , Humanos , Presión Intraocular , Rayos Láser , Hipertensión Ocular/fisiopatología
9.
Int Ophthalmol ; 23(4-6): 425-8, 2001.
Artículo en Inglés | MEDLINE | ID: mdl-11944871

RESUMEN

PURPOSE: To describe the angiographic signs found using scanning laser ophthalmoscopy for the early diagnosis of vitreoretinal interface syndrome. This method is useful to visualize the inner retinal layers, being more sensitive than fundus biomicroscopy. MATERIAL: 61 patients with vitreoretinal interfase syndrome were evaluated. All of them had evidence of this disease using scanning laser ophthalmoscopy but four patients were referred without diagnosis of vitreoretinal interfase syndrome. These patients showed no biomicroscopic signs and diagnosis was made with SLO. METHODS: Confocal scanning infrared laser ophthalmoscope (Heidelberg Retinal Angiograph assembled by Heidelberg Engineering). This SLO uses an infrared diode laser source of 795 nm. CONCLUSION: Patients included were referred with another diagnosis and with this method the correct diagnosis was made. In conclusion scanning laser ophthalmoscopy allows early diagnosis of this pathology for follow-up and treatment.


Asunto(s)
Oftalmoscopía/métodos , Vitreorretinopatía Proliferativa/diagnóstico , Angiografía con Fluoresceína/métodos , Humanos , Rayos Láser , Persona de Mediana Edad , Síndrome
10.
Biochim Biophys Acta ; 1466(1-2): 139-50, 2000 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-10825438

RESUMEN

We obtained cDNA chimeras between Na/glucose cotransporter (SGLT1) and the homologous Na(+)/myo-inositol cotransporter (SMIT) by creating random chimeras in plasmids. Of 12 chimeras, two were functional when expressed in Xenopus laevis oocytes but, upon sequencing, only one of them (C1) produced an actual chimeric protein. In C1, the first 69 amino acids of SGLT1 were replaced by the corresponding 50 amino acids of SMIT. C1 transports the same sugars as does SGLT1. C1's affinity for all sugar substrates was systematically increased by a factor of 3.3+/-0.4 but the V(max) was diminished by a factor of 15-40. In contrast, the cotransport affinity for Na(+) was unchanged. The surface expression of C1 was one seventh that of SGLT1, which explains part of the reduced V(max) and implies a significant reduction in turnover rate. N-terminal truncated constructs of SGLT1 cDNA showed that deleting amino acids 2-14 does not affect cotransporter activity, but that the pentapeptide T(14)RPVET(19) is important for normal levels of SGLT1 current. The main result of a kinetic analysis of the systematic increase in apparent affinity for sugars, together with the intact Na apparent affinity, suggests enhanced access to the sugar binding site in C1.


Asunto(s)
Proteínas Portadoras/fisiología , Glucosa/metabolismo , Proteínas de Choque Térmico/fisiología , Glicoproteínas de Membrana/fisiología , Proteínas de la Membrana , Proteínas de Transporte de Monosacáridos/fisiología , Sodio/metabolismo , Simportadores , 3-O-Metilglucosa/metabolismo , 3-O-Metilglucosa/farmacología , Secuencia de Aminoácidos , Animales , Proteínas Portadoras/genética , Proteínas Portadoras/metabolismo , ADN Complementario , Galactosa/metabolismo , Galactosa/farmacología , Proteínas de Choque Térmico/genética , Proteínas de Choque Térmico/metabolismo , Inositol/metabolismo , Inositol/farmacología , Glicoproteínas de Membrana/genética , Glicoproteínas de Membrana/metabolismo , Metilglucósidos/metabolismo , Metilglucósidos/farmacología , Datos de Secuencia Molecular , Proteínas de Transporte de Monosacáridos/genética , Proteínas de Transporte de Monosacáridos/metabolismo , Florizina/metabolismo , Proteínas Recombinantes de Fusión/genética , Transportador 1 de Sodio-Glucosa , Xenopus laevis
11.
Radiol Manage ; 21(4): 23-5, 28, 1999.
Artículo en Inglés | MEDLINE | ID: mdl-10558030

RESUMEN

Memorial Hospital is located in-North Conway, New Hampshire. Year round, the 35-bed hospital serves mainly tourists and retirees to the area. The imaging department wanted to integrate its services within an existing community network, meet the needs of a transient population and resolve staff utilization and storage problems. Conversion from film to digital in the radiology department took advantage of digital x-ray and PACS. Since the hospital was already using digital technology for CT, MR, ultrasound and fluoroscopy, it made sense to include plain film imaging in the digitization process Memorial Hospital faced a number of challenges. Those in decision-making positions lacked a general knowledge about PACS, and, in particular, about PACS in similarly sized facilities. The hospital also lacked experience working with vendors. A timeline was critical as Memorial Hospital prepared for winter, its busiest season. The facility decided on a phased-in project with no immediate HIS/RIS interface, and computerized radiography with hard-copy films was implemented immediately. The facility has made the transition from a conventional imaging department to a PACS environment. It attributes its success to the way it involved those who would be affected by any future changes in the planning and decision-making processes. Memorial Hospital expects to expand its services and streamline its archival capabilities in the near future.


Asunto(s)
Servicio de Radiología en Hospital/organización & administración , Sistemas de Información Radiológica , Eficiencia Organizacional , Hospitales con menos de 100 Camas , Hospitales Comunitarios/organización & administración , Humanos , New Hampshire , Estudios de Casos Organizacionales , Innovación Organizacional , Tecnología Radiológica/instrumentación , Tecnología Radiológica/métodos
13.
J Biol Chem ; 273(42): 27593-601, 1998 Oct 16.
Artículo en Inglés | MEDLINE | ID: mdl-9765293

RESUMEN

TFIIF (RAP30/74) is a general initiation factor that also increases the rate of elongation by RNA polymerase II. A two-hybrid screen for RAP74-interacting proteins produced cDNAs encoding FCP1a, a novel, ubiquitously expressed human protein that interacts with the carboxyl-terminal evolutionarily conserved domain of RAP74. Related cDNAs encoding FCP1b lack a carboxyl-terminal RAP74-binding domain of FCP1a. FCP1 is an essential subunit of a RAP74-stimulated phosphatase that processively dephosphorylates the carboxyl-terminal domain of the largest RNA polymerase II subunit. FCP1 is also a stoichiometric component of a human RNA polymerase II holoenzyme complex.


Asunto(s)
Fosfoproteínas Fosfatasas/metabolismo , ARN Polimerasa II/metabolismo , Factores de Transcripción TFII , Factores de Transcripción/metabolismo , Secuencia de Aminoácidos , Sitios de Unión , Clonación Molecular , Holoenzimas/metabolismo , Humanos , Datos de Secuencia Molecular , Unión Proteica , Saccharomyces cerevisiae/genética , Análisis de Secuencia de ADN , Transcripción Genética
14.
Proc Natl Acad Sci U S A ; 94(26): 14300-5, 1997 Dec 23.
Artículo en Inglés | MEDLINE | ID: mdl-9405607

RESUMEN

One of the essential components of a phosphatase that specifically dephosphorylates the Saccharomyces cerevisiae RNA polymerase II (RPII) large subunit C-terminal domain (CTD) is a novel polypeptide encoded by an essential gene termed FCP1. The Fcp1 protein is localized to the nucleus, and it binds the largest subunit of the yeast general transcription factor IIF (Tfg1). In vitro, transcription factor IIF stimulates phosphatase activity in the presence of Fcp1 and a second complementing fraction. Two distinct regions of Fcp1 are capable of binding to Tfg1, but the C-terminal Tfg1 binding domain is dispensable for activity in vivo and in vitro. Sequence comparison reveals that residues 173-357 of Fcp1 correspond to an amino acid motif present in proteins of unknown function predicted in many organisms.


Asunto(s)
Fosfoproteínas Fosfatasas , Monoéster Fosfórico Hidrolasas/metabolismo , ARN Polimerasa II/metabolismo , Saccharomyces cerevisiae/metabolismo , Factores de Transcripción TFII , Factores de Transcripción/metabolismo , Secuencia de Aminoácidos , Proteínas Fúngicas/química , Proteínas Fúngicas/metabolismo , Datos de Secuencia Molecular , Monoéster Fosfórico Hidrolasas/química , ARN Polimerasa II/química , Análisis de Secuencia
15.
Cah Que Demogr ; 25(1): 13-38, 1996.
Artículo en Francés | MEDLINE | ID: mdl-12292478

RESUMEN

"The case of China is in many ways exemplary, due to both its extremely long history and the fact that the Chinese approach influenced other countries over the course of the centuries, and can thus be viewed as a model. The first ¿censuses' were intended as an administrative tool, to manage lists of those subject to the corvee. As administrative regulations evolved, these lists were made obsolete and replaced, with the change of dynasty in 1644, by fiscal records. From 1740 to 1780, in order to link economic knowledge--especially grain prices--to the demographic situation, the central government urged local authorities to produce nominative records. Genealogies, rich in information, were another source of knowledge. With certain alterations, the Chinese model spread into the surrounding region, including Japan, Vietnam and Korea." (SUMMARY IN ENG AND SPA)


Asunto(s)
Censos , Recolección de Datos , Genealogía y Heráldica , Estadísticas Vitales , Asia , China , Países en Desarrollo , Familia , Composición Familiar , Asia Oriental , Características de la Población , Investigación
16.
J Pharm Sci ; 85(1): 45-51, 1996 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-8926582

RESUMEN

The objective of this study was to extend our understanding of the stability of heparin. Sodium heparin, derived from porcine intestinal mucosa, was first incubated in 0.1 N hydrochloric acid and 0.1 N sodium hydroxide at 30 and 60 degrees C and sampled at times ranging from 0 to 1000 h. The absorbance spectra of the products formed under basic conditions showed an ultraviolet maxima at 232 nm associated with chemically catalyzed beta-elimination at the uronic acid residues. The products formed under acidic conditions showed a decreased staining intensity consistent with desulfation and a decrease in molecular weight corresponding to hydrolysis of glycosidic linkages when analyzed by gradient polyacrylamide gel electrophoresis. Heparin samples were next prepared in 10 mM sodium phosphate buffer at pH 7.0 in sealed ampules that had been flushed with nitrogen and incubated at 100 degrees C. Samples taken at times ranging from 0 to 4000 h were then analyzed. Heparin was relatively stable over the first 500 h, after which it rapidly degraded. Heparin, assayed using both anti-factor Xa and anti-factor IIa amidolytic methods retained 80-90% of its activity over the first 500 h, but these activities dropped precipitously, to approximately 6% and approximately 0.5% of the initial activity at 1000 h and 2000 h, respectively. This rapid decomposition began only after the buffering capacity of the solution was overwhelmed by acidic degradants, which caused the pH to decrease. Decomposition processes observed under these conditions included the endolytic hydrolysis of glycosidic linkages and loss of sulfation, particularly N-sulfate groups, and were similar to the degradation processes observed in 0.1 N hydrochloric acid. This study provides initial observations on heparin degradation pathways. More complete, quantitative studies and studies leading to the isolation and characterization of specific degradants are still required.


Asunto(s)
Anticoagulantes/química , Heparina/química , Animales , Secuencia de Carbohidratos , Fenómenos Químicos , Química Física , Estabilidad de Medicamentos , Electroforesis en Gel de Poliacrilamida , Humanos , Datos de Secuencia Molecular , Soluciones , Porcinos
17.
Ann Demogr Hist (Paris) ; : 149-59, 1995.
Artículo en Francés | MEDLINE | ID: mdl-11609068

RESUMEN

Taking as its starting point the huge sample of 260,000 people born in China between the 13th and the 19th century used by Liu Ts'ui-Jung in her recent study on Lineage population, our study aims at assessing the premodern demographic evolution of China. Inasmuch the method of family reconstruction actually limited the scope of her book, Liu Ts'ui-Jung was not able to go beyond the description of a specific demographic regime defined by three elements: 1) universal marriage; 2) a moderate level of masculine fertility; and 3) a life expectation at 15 comprised between 30 and 40. These conditions would not allow the constitution of many extended households, whereas the annual rate of growth would be somewhere around 1%, a situation having little in common with the present day "population explosion". Using data included in the book, but not considered for the demonstration, we have been able to establish a dramatic deterioration of the mortality pattern from the middle of the 18th century onwards. Accordingly, the proportion of widows increases whereas population which would be characterized with a long period of growth followed by a crisis generated by a surge of the mortality rate.


Asunto(s)
Composición Familiar , Dinámica Poblacional , China , Demografía , Historia Pre Moderna 1451-1600 , Historia Medieval , Historia Moderna 1601-
18.
Courr Pays Est ; (377): 36-57, 1993 Mar.
Artículo en Francés | MEDLINE | ID: mdl-12287216

RESUMEN

PIP: Preliminary results of a 10% sample from the 4th census of the People's Republic of China, conducted between April and July 1990, began to be published outside China in mid-1992. Comparison of results of the 3rd census in 1982 with the 1990 data make possible an assessment of China's demographic situation over the past decade. To help determine whether the 1990 data are reliable and take into account the "mobile population" of persons residing in districts other than those of their registration and unregistered children born in defiance of the 1-child policy. the 1990 age structure was compared with that of 1982. The 1990 population corresponded in general terms to that enumerated in 1982, but allowing for mortality it included nearly 4 million children born around the beginning of the one child policy who were not included in the 1982 census. A second anomaly was the apparent omission of around 2 million persons in the 28-37 year cohort in 1990 who may have been part of the "mobile population." The 1990 census data indicate that fertility for 1982-90 was 8.8% higher on average than reflected in vital statistics of survey data. The annual number of births would have fluctuated between 20 and 25 million. If this reconstruction is correct, the 176.4 million children aged 0-7 years enumerated in 1990 would be the survivors of around 184 million infants born between the 2 censuses. A population movement characterized by an average of 7 million deaths and 23 million births annually can be inferred. The number of persons aged 65 and over increased from 49 to 63 million between the censuses. The proportion 65 and over increased from 4.9 to 5.6%, while that of children under 15 declined from 33.4% in 1982 to 27.6% in 1990. The overall sex ratio increased slightly from 106.3 to 106.5 between 1982 and 1990. The persisting excess of males is a result of the 1-child policy. The excess of males aged 0-7 born during the intercensal period was over 9 million, instead of the 5 million that should be expected according to the laws of biology. One of the principal findings of the 1990 census was the vigorous nuptiality increase, the apparent result of a decline i the average age at first marriage from 25 to 24 years for men and of slightly less than a year for women, who continue to marry in their 23rd year on average. The combination of a declining age at marriage and the arrival at marriageable age of the last cohorts born in the 1960s produced noneligible effects on fertility. Between 1981 and 1989, the average maternal age at first birth declined from 24 to 23 years. The total fertility rate declined from 2.6 in 1982 to 2.2 in 1990. In 1982 and 1990, respectively, 47.25% and 49.5% of births were first order, 25.6% and 31.7% were second order, and 27.15% and 19.74% were third or higher order. 12 years after the launching of the 1-child policy, the 2-child family appears to predominate. If this level of fertility persists, the Chinese population will probably reach 1.3 billion before 2000.^ieng


Asunto(s)
Distribución por Edad , Censos , Política de Planificación Familiar , Fertilidad , Matrimonio , Mortalidad , Crecimiento Demográfico , Proyectos de Investigación , Razón de Masculinidad , Factores de Tiempo , Factores de Edad , Asia , China , Demografía , Países en Desarrollo , Asia Oriental , Población , Características de la Población , Dinámica Poblacional , Política Pública , Investigación , Distribución por Sexo , Factores Sexuales , Estadística como Asunto
19.
Probl Econ ; (2297): 1-8, 1992 Oct 28.
Artículo en Inglés | MEDLINE | ID: mdl-12286519

RESUMEN

PIP: The authors compare demographic trends in China and India and policies and programs developed to slow population growth. Particular attention is given to regional differences within both countries and to problems of providing employment opportunities to a rapidly growing population.^ieng


Asunto(s)
Empleo , Geografía , Dinámica Poblacional , Asia , China , Demografía , Países en Desarrollo , Economía , Asia Oriental , India , Población , Investigación
20.
Nat Genet ; 2(1): 42-5, 1992 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-1303247

RESUMEN

The murine Elo (eye lens obsolescence) mutation confers a dominant phenotype characterized by malformation of the eye lens. The mutation maps to chromosome 1, in close proximity to the gamma E-crystallin gene which is the 3'-most member of the gamma-crystallin gene cluster. We have analysed the sequence of this gene from the Elo mouse and identified a single nucleotide deletion which destroys the fourth and last "Greek key" motif of the protein. This mutation is tightly associated with the phenotype, as no recombination was detected in 274 meioses. In addition, the mutant mRNA is present in the affected lens, providing further support for our hypothesis that the deletion is responsible for the dominant Elo phenotype.


Asunto(s)
Cristalinas/genética , Mutación del Sistema de Lectura , Animales , Secuencia de Bases , ADN/genética , Análisis Mutacional de ADN , Femenino , Expresión Génica , Cristalino/anomalías , Masculino , Ratones , Ratones Mutantes , Datos de Secuencia Molecular
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