abstract：:Breastfeeding has experienced a surge in Puerto Rico thanks to the efforts of many women, as well as governmental, non-governmental and private organizations. Among the aspects which can affect the initiation, establishment and maintenance of successful breastfeeding one finds potential ethical conflicts among health ...

journal_title：Puerto Rico health sciences journal

authors： Parrilla Rodríguez AM,Gorrín Peralta JJ

更新日期：2000-06-01 00:00:00

abstract：OBJECTIVE:To compare the effectiveness of intravenous immunoglobulin (IVIG) alone, high dose methylprednisolone (HDMP) alone and the combination of IVIG and HDMP in the treatment of childhood immune thrombocytopenic purpura (ITP). BACKGROUND:Acute ITP in children is a self-limited disease with a benign course and low ...

journal_title：Puerto Rico health sciences journal

authors： Gereige RS,Barrios NJ

更新日期：2000-03-01 00:00:00

abstract：OBJECTIVE:To evaluate the utility of the substituted judgement standard in terminally ill patients by determining agreement between patients, family proxies and physicians. BACKGROUND:Several studies have addressed the utility of substituted judgement, showing conflicting data whether surrogates are accurate predictin...

journal_title：Puerto Rico health sciences journal

authors： Príncipe-Rodríguez K,Rodríguez-Cintrón W,Torres-Palacios A,Casal-Hidalgo J

更新日期：1999-12-01 00:00:00

abstract：:Surveillance for emerging diseases is critically dependent on four factors: reporting methods, case definition, laboratory diagnosis, and knowledge of the disease among health-care professionals. The dengue hemorrhagic fever (DHF) surveillance system in Puerto Rico collects patient data from three sources: dengue case...

journal_title：Puerto Rico health sciences journal

authors： Rigau-Pérez JG

更新日期：1999-12-01 00:00:00

abstract：:Rat gene 33 (g33) mRNA has a widespread tissue distribution. Insulin and various agents such as glucocorticoids, phorbol esters and plant lectins regulate G33 expression in rat hepatoma cells. The regulation of g33 by insulin and a phorbol ester was examined in two Chinese Hamster ovary (CHO) cell lines, CHO-T cells (...

journal_title：Puerto Rico health sciences journal

authors： Romero N,Jiménez BD,Cadilla CL

更新日期：1999-09-01 00:00:00

abstract：:Aspiration of foreign bodies is more common in children than adults. The clinical and radiological findings between these two age groups are different. It is a clinical diagnosis often overlooked in adults. We hereby present an elderly male patient who was referred to us due to a one year history of hemoptysis. He was...

journal_title：Puerto Rico health sciences journal

authors： Mercado JA,Rodríguez W

更新日期：1999-03-01 00:00:00

abstract：OBJECTIVE:A preliminary investigation to test the efficacy of intravenous propranolol in reducing the cesarean section rate in nulliparas in active labor and evaluate its effect on neonatal and maternal outcomes. METHODS:Fifty seven nulliparous patients admitted in active labor were randomly divided into two groups: a...

journal_title：Puerto Rico health sciences journal

authors： Adamsons K,de la Vega A,Santiago P

更新日期：1999-03-01 00:00:00

abstract：:Endothelial cell proliferation and differentiation into blood capillaries (i.e., angiogenesis) are essential for growth and development, wound healing, osetogenesis, etc. But abnormal angiogenesis during tumor progression could lead to serious consequences. Angiogenesis is a complex biochemical process, and is often d...

journal_title：Puerto Rico health sciences journal

authors： Banerjee DK

更新日期：1998-12-01 00:00:00

abstract：OBJECTIVE:This study assesses the antitubercular potential of natural products obtained from plants reputed to have medicinal properties and collected from the tropical flora of Puerto Rico. BACKGROUND:The increase in persons infected with Mycobacterium tuberculosis (MTB) the world over and the development of resistan...

journal_title：Puerto Rico health sciences journal

authors： Frame AD,Ríos-Olivares E,De Jesús L,Ortiz D,Pagán J,Méndez S

更新日期：1998-09-01 00:00:00

abstract：:This article examines the available data on the health status of Puerto Rican women in the United States. Statistics on reproductive health, cancer and AIDS indicate that the health status of these women is lower than that of both their U.S. and island counterparts. Usually, the health of immigrants lies somewhere bet...

journal_title：Puerto Rico health sciences journal

authors： Ramírez de Arellano AB

更新日期：1998-03-01 00:00:00

abstract：:Folate deficiency is one of today's most common vitamin deficiencies in women. Women who consume a low level of folate during pregnancy are at risk for poor pregnancy outcomes including neural tube defects (NTD). However, other factors such as heredity, social class, maternal age, birth order, maternal diet, length of...

journal_title：Puerto Rico health sciences journal

authors： González MJ,Schmitz KJ,Matos MI,López D,Rodríguez JR,Gorrín JJ

更新日期：1997-12-01 00:00:00

abstract：:The World Health Organization criteria for the diagnosis of Osteopenia and Osteopoposis was applied to a control group of 33 females ages 50 to 59 years and 24 females ages 60 to 69 years. The general exclusion criteria for the selection of subjects included early menopause and diseases, use of drugs and toxic habits ...

journal_title：Puerto Rico health sciences journal

authors： Haddock L

更新日期：1997-09-01 00:00:00

abstract：:Significant new findings in the last decade have demonstrated that the vascular endothelium is an important regulatory organ in maintaining cardiovascular homeostasis and that endothelial dysfunction is present in several cardiovascular diseases. With the production of multiple vasoactive substances the normal endothe...

journal_title：Puerto Rico health sciences journal

authors： Garćia-Palmieri MR

更新日期：1997-06-01 00:00:00

abstract：:This paper examines the characteristics of youngsters in drug treatment who volunteer for AIDS testing in comparison to those who do not. HIV Antibodies testing was offered on a voluntary basis to a sample of 250 Puerto Rican youngsters enrolled in three ambulatory drug treatment centers in 1991. Sixty-six percent of ...

journal_title：Puerto Rico health sciences journal

authors： Vélez CN,Rodríguez LA,Schoenbaum E,Ungemack JA

更新日期：1997-03-01 00:00:00

abstract：:This study aims to determine the prevalence of Mycobacterium tuberculosis infection and its association with HIV and other health risk factors among drug users. A sample of 716 IDUs and crack users were enrolled from community sites. Consenting subjects were tested for HIV serum antibody status. Drug users with an unk...

journal_title：Puerto Rico health sciences journal

authors： Reyes JC,Robles RR,Colón HM,Marrero CA,Castillo X,Meléndez M

更新日期：1996-09-01 00:00:00

abstract：OBJECTIVE:To evaluate and compare the efficacy in obtaining an adequate endocervical sampling using the endocervical brush and the endocervical curettage. METHODS:Analysis of the cytology and histology of samples obtained from patients referred to the University of Puerto Rico School of Medicine Tertiary Care Center A...

journal_title：Puerto Rico health sciences journal

authors： Martin D,Umpierre SA,Villamarzo G,Sánchez O,Sánchez J,Carrodeguas J,Adamsons K

更新日期：1995-09-01 00:00:00

abstract：:The association of Hispanic race/ethnicity and poverty with general survival time and breast cancer survival time was examined for a total of 14,896 breast cancer patients (14,035 White and 861 Hispanic) included in the National Cancer Institute Surveillance Epidemiology and End Results (NCI SEER) program in New Mexic...

journal_title：Puerto Rico health sciences journal

authors： Delgado DJ,Lin WY,Coffey M

更新日期：1995-06-01 00:00:00

abstract：:Seventy two partial subperiosteal implants were inserted in 52 patients. Thirty six of these implants had a classical design in which the submerged structure had thick primary and secondary connectors. Thirty six implants had a newly designed submerged structure consisting of long and thin primary connectors with groo...

journal_title：Puerto Rico health sciences journal

authors： Ferrer F

更新日期：1994-09-01 00:00:00

abstract：:This review of literature identifies different ergometers used for the assessment of the physiological and metabolic responses observed during exercise in air (treadmill, cycle ergometer, arm ergometer, bench step, swim bench, and simulated swimming) and water (tethered or stationary swimming, swimming flume, and free...

journal_title：Puerto Rico health sciences journal

authors： Lopategui Corsino E,Soler López R,Rivera Pérez MA

更新日期：1994-06-01 00:00:00

abstract：:Extracts from higher plants were evaluated for inhibitory activity against avian myeloblastosis virus reverse transcriptase. The assay may serve as a useful prescreen for potential anti-HIV bioactives. ...

journal_title：Puerto Rico health sciences journal

authors： Antoun MD,Ríos YR,Mendoza NT,Proctor G

更新日期：1994-03-01 00:00:00

abstract：:Thymidine kinase is a key enzyme responsible for the activation of several anticancer and antiviral drugs. As the first enzyme in the salvage pathway of thymidine, it is regulated by the feedback inhibition exerted by the end-product of the pathway, namely thymidine 5'-triphosphate. 5'-Aminothymidine is a non-toxic an...

journal_title：Puerto Rico health sciences journal

authors： Vázquez-Padua MA

更新日期：1994-03-01 00:00:00

abstract：:The identification of Streptococcus mutans from dental plaque samples with rapid systems, such as the RapID STR System, has not been recommended by the manufacturers. In this study, we evaluated the use of the above method for the identification of 34 human dental plaque Streptococcus mutans strains which had been ide...

journal_title：Puerto Rico health sciences journal

authors： Oletta CA,Pérez B,Zlotnik H

更新日期：1993-12-01 00:00:00

abstract：:Alzheimer's Disease. The untold story. After considering the potential relationship between amyloid deposits and myxedematous infiltrations, the hypothesis is formulated that Alzheimer's disease may be due to functional hypothyroidism and may thus respond to thyroid therapy. ...

journal_title：Puerto Rico health sciences journal

authors： Picó-Santiago G

更新日期：1993-06-01 00:00:00

abstract：:Deficient mydriasis of diverse etiology renders extracapsular cataract extraction and posterior chamber intraocular lens implantation technically difficult. Several techniques are available to improve surgical results when this problem is present. We have used multiple sphincterotomies in 6 patients with narrow pupils...

journal_title：Puerto Rico health sciences journal

authors： Mendicute J,Seminario M,Eder F,Müller-Thyssen A,Genua I,Lamsfus JM

更新日期：1993-06-01 00:00:00

abstract：:Although injection drug use (IDU) is the major risk category for HIV infection in Puerto Rico and injection drug users start their drug injection careers very young, there is little information related to drug injection patterns of young IDUs. In this paper we report on factors found to be associated with HIV seroposi...

journal_title：Puerto Rico health sciences journal

authors： Marrero Rodríguez CA,Robles RR,Colón HM,Freeman DH,Matos TD,Reyes JC

更新日期：1993-04-01 00:00:00

abstract：:In studying the process of protein synthesis of a silk-producing organism we have found that several macromolecules must be synthesized in order for the process to occur. Through time course studies, we have found that small RNAs may play a paramount role in directing the finely orchestrated process. Alanine tRNA, U1 ...

journal_title：Puerto Rico health sciences journal

authors： Luciano E,Arroyo G,Candelas T,Candelas GC

更新日期：1992-08-01 00:00:00

abstract：:Primary hepatic actinomycosis is an uncommon entity. We report the case of a young man with past history of an appendectomy who presented with fever, weight loss and a liver mass that was initially suspected to be neoplastic. Percutaneous liver biopsy revealed actinomyces-like organisms. The patient was treated with i...

journal_title：Puerto Rico health sciences journal

authors： Vargas C,González C,Pagani W,Torres E,Fas N

更新日期：1992-04-01 00:00:00

abstract：:Formal training in public health in Puerto Rico began in 1940 when a degree-granting Division of Public Health was established within the existing School of Tropical Medicine. The division was sponsored by five institutions--the Puerto Rico Department of Health, the U.S. Public Health Service, the Children's Bureau, t...

journal_title：Puerto Rico health sciences journal

authors： Ramírez de Arellano AB

更新日期：1991-12-01 00:00:00

abstract：:The physical parameters of nuclear size and granularity, and the biological parameters of nuclear protein and DNA content were simultaneously measured by the flow cytometric analysis of mitogen-activated Rhesus monkey lymphocytes. These experiments were performed with the purpose of establishing baseline values for mi...

journal_title：Puerto Rico health sciences journal

authors： Del Llano AM,Lavergne JA

更新日期：1991-08-01 00:00:00

abstract：:Four hundred and sixty six non-institutionalized seniors, 65 years of age and over comprise the sample. The questions pertaining to the specific topic are made up of 17 items: 9 related to background information and 8 relating to nutritional practices. It is part of a larger study of the socio-demographic characterist...

journal_title：Puerto Rico health sciences journal

authors： Irizarry A,Velasco EM

更新日期：1989-12-01 00:00:00

abstract：:Cayo Santiago has provided the opportunity to study primate biology in a free-ranging neutral environment free of provocative human influences. Rarely, if ever, does such a situation occur in natural rhesus habitats in Asia. This Cayo Santiago advantage has permitted fine-scale analyses of the details of behavior, eco...

journal_title：Puerto Rico health sciences journal

authors： Southwick CH

更新日期：1989-04-01 00:00:00

abstract：:113 rhesus monkeys, representing 4 age classes, 3 matrilines, and immigrant adult males in a 161-member Cayo Santiago-derived troop living in a 2-acre enclosure, were sampled for levels of plasma ACTH and cortisol during a period of capture and brief cage confinement for routine veterinary examination. ACTH levels sho...

journal_title：Puerto Rico health sciences journal

authors： Suomi SJ,Scanlan JM,Rasmussen KL,Davidson M,Boinski S,Higley JD,Marriott B

更新日期：1989-04-01 00:00:00

abstract：:Patterns of stress-responsiveness were studied in 19 adolescent male rhesus monkeys (Macaca mulatta) who are part of the free-ranging colony on Cayo Santiago, PR. Morphometric and blood samples were obtained as each male was captured and after holding overnight. Subject heart rate was recorded on Day 2, using surface ...

journal_title：Puerto Rico health sciences journal

authors： Rasmussen KL,Suomi SJ

更新日期：1989-04-01 00:00:00

abstract：:As part of the January, 1988 trapping of the Cayo Santiago rhesus colony a number of morphometric measurements and serum were collected to examine metabolic and hormonal changes associated with spontaneous obesity. Measurements included body weights, crown-rump lengths, abdominal and scapular skinfolds and circumferen...

journal_title：Puerto Rico health sciences journal

authors： Schwartz SM

更新日期：1989-04-01 00:00:00

abstract：:The type of glass used to fabricate patch pipettes influences the kinetic properties of single-channel currents activated by acetylcholine in Xenopus myocytes. In patches formed with hard glass pipettes, the opening rate decreased in a time-dependent manner. Such decrease was most pronounced for the low conductance ch...

journal_title：Puerto Rico health sciences journal

authors： Rojas L,Zuazaga C

更新日期：1988-08-01 00:00:00

abstract：:The development of active Ca channels was studied in progenitors of chick dorsal root ganglion (DRG) cells. These were isolated using neuron and glia specific antibodies which killed differentiated cells. The low voltage activated, completely inactivating (LVA) Ca channel was found to be expressed first amongst channe...

journal_title：Puerto Rico health sciences journal

authors： Lux HD

更新日期：1988-08-01 00:00:00

abstract：:1. To know if the absence of desensitization in the chicken is characteristic of avian tissues, we studied the anaphylactic reaction in the duck. The contractions elicited in pieces of small intestine of actively immunized ducks upon exposure to the specific antigen, or Schultz-Dale reaction, were compared to similar ...

journal_title：Puerto Rico health sciences journal

authors： Gijon E,Garcia X

更新日期：1988-08-01 00:00:00

abstract：:The present study analyzed the socioeconomic determinants of health insurance status among Puerto Ricans. Given the fact that there are no mandated health benefits for private firms in Puerto Rico and that health services are provided almost free of charge in government facilities, Puerto Rico provides a unique case s...

journal_title：Puerto Rico health sciences journal

authors： Muñoz CA

更新日期：1988-04-01 00:00:00

abstract：:There has been a constant increase in the incidence of dengue in the Americas over the past 15 years. This has been caused by increased frequency of epidemic activity in most countries, as a result of increased numbers of virus serotypes circulating in the region. The change in disease ecology has resulted in the emer...

journal_title：Puerto Rico health sciences journal

authors： Gubler DJ

更新日期：1987-08-01 00:00:00

abstract：:A questionnaire entitled "Attitude toward tobacco usage among health professionals in Puerto Rico" was administered to medical students completing their first and fourth years respectively at the University of Puerto Rico Medical School. Percent of each group currently smoking was found to be 18.5 and 10.8 with an ave...

journal_title：Puerto Rico health sciences journal

authors： Preston AM,Matos FV,Flores MI

更新日期：1987-08-01 00:00:00