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 snRNA, and 5S RNA have been identified through Northern blotting as molecules timely and tissue-specific synthesized and upgraded as a prelude activity for the silk being produced.
journal_name
P R Health Sci Jjournal_title
Puerto Rico health sciences journalauthors
Luciano E,Arroyo G,Candelas T,Candelas GCsubject
Has Abstractpub_date
1992-08-01 00:00:00pages
73-6issue
2eissn
0738-0658issn
2373-6011journal_volume
11pub_type
杂志文章abstract：OBJECTIVE:Skin biomechanics are physical properties that protect the body from injury. Little is known about differences in skin biomechanics in racial/ethnic groups and the role of skin color in these differences. The purpose of this study was to determine the relationship between skin biomechanics (viscoelasticity, h...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2019-09-01 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
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1999-03-01 00:00:00
abstract：:Atherosclerosis is the most frequent cause of ischemic heart disease and cerebrovascular disorders. The condition is the leading cause of death in Western societies. At the core of this condition is the atherosclerotic plaque. It is within the structure of this lesion that multiple biochemical and cellular processes i...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2008-09-01 00:00:00
abstract：OBJECTIVE:To compare the variations in central corneal thickness and intraocular pressure measurements according to race, gender, and age. METHODS:A non-concurrent prospective study of 372 (744 eyes) glaucoma patients was conducted. Central corneal thickness was measured with ultrasound pachymeter and intraocular pres...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2007-03-01 00:00:00
abstract：OBJECTIVE:Breast asymmetries have a high prevalence among women requesting breast augmentation. However, the prevalence of breast asymmetries in women undergoing other types of breast surgeries is not known. METHODS:The breast measurements of consecutively women evaluated for plastic surgery of the breast, but without...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2018-12-01 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
pub_type： 杂志文章
doi：
更新日期：1987-08-01 00:00:00
abstract：OBJECTIVE:To examine the relationship of the symptoms of diarrhea and fatigue by testing a model that included multiple dimensions of the cancer related-symptom experience. METHODS:A secondary data analysis was conducted on data from the self-reports of 102 cancer patients co experiencing diarrhea and fatigue during t...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2019-06-01 00:00:00
abstract：:Atrial fibrillation (AF) is the most common sustained arrhythmia in adults. It is a significant public health problem in the United States where it affects 2.2 million Americans and almost 10% of the population older than 80 years. It should be emphasized that the prevalence of AF increases with advancing age and with...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章,评审
doi：
更新日期：2004-12-01 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
pub_type： 杂志文章
doi：
更新日期：1998-12-01 00:00:00
abstract：:Insulin-dependent diabetes mellitus (IDDM) is a chronic health condition that affects 18 of every 100,000 Puerto Rican youth. Few research studies have been performed on the problems that youth with diabetes encounter and how they are related to adherence to treatment and adequate metabolic control. Adequate metabolic...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2006-12-01 00:00:00
abstract：:This brief celebration of the work of Francisco Guerra (1916-2011) highlights his role as mentor for an international community, his study of local events in the context of global developments, and his contributions to the understanding of the medical history of Puerto Rico. A selective review of Francisco Guerra's me...
journal_title：Puerto Rico health sciences journal
pub_type： 传,历史文章,杂志文章
doi：
更新日期：2012-06-01 00:00:00
abstract：:Candida is the fourth most common cause of nosocomial bloodstream infections (BSI), being Candida albicans the most common species. This study evaluated the distribution of Candida spp isolates at a tertiary care medical center. The associated factors and outcome of patients with candidemia at the Puerto Rico Medical ...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2010-03-01 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
pub_type： 杂志文章,评审
doi：
更新日期：1994-03-01 00:00:00
abstract：OBJECTIVE:This study was conducted to determine the experience of tooth loss, as well as its associated variables, in a sample of adult Mexicans, aged 60 years and older. MATERIALS AND METHODS:This cross-sectional study was part of a larger project to measure diverse oral health indicators in a convenience sample: it ...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2016-06-01 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
pub_type： 杂志文章
doi：
更新日期：1998-03-01 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
pub_type： 杂志文章
doi：
更新日期：1991-08-01 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
pub_type： 杂志文章
doi：
更新日期：1993-04-01 00:00:00
abstract：:The world has encountered a new and serious epidemic which has disproportionately affected fetuses and infants. What makes the Zika virus (ZIKV) epidemic such a threat in our times, is that a whole generation can be affected by birth defects caused by a seemingly innocuous maternal infection, which in most cases go un...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章,评审
doi：
更新日期：2018-12-01 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
pub_type： 杂志文章
doi：
更新日期：2000-03-01 00:00:00
abstract：:The objective of this study was to identify the knowledge about sexuality (including STD/HIV/AIDS), the sexual practices more frequents and sexuality education sources in a group of students with visual impairments. A self administered questionnaire was utilized in 50 students with visual impairment. Descriptive stati...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2001-09-01 00:00:00
abstract：OBJECTIVE:Shunt infection is the most common complication following a Cerebrospinal fluid (CSF) diversion procedure with devastating consequences. This study analyzes the efficacy of different shunt systems in reducing early shunt infections in the pediatric population. METHODS:Retrospective case study analysis of 177...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2019-12-01 00:00:00
abstract：:Hypokalemic periodic paralysis (hypoKPP) is a clinical entity characterized by recurrent skeletal muscle paralysis due to a decrease in serum potassium levels; hypoKPP can have either a primary (familial) or a secondary cause. One of the secondary causes of hypoKPP is distal renal tubular acidosis (dRTA). Distal renal...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2017-12-01 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
pub_type： 杂志文章
doi：
更新日期：1989-04-01 00:00:00
abstract：INTRODUCTION:Neoplasms of the heart are extremely rare and difficult to diagnose. In this study, we intend to describe the experience at the Cardiovascular Center of Puerto Rico and the Caribbean (CCPRC) dealing with benign cardiac neoplasms. METHODS:A retrospective review of the archival material at our institution w...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2008-12-01 00:00:00
abstract：OBJECTIVE:Fungal spores are ubiquitous in the atmosphere worldwide, but their distribution is not homogeneous at different locations. Most studies have compared airborne fungal spores ecology in temperate zones, but less is known about the tropics. METHODS:This study compared, through statistical analysis of archived ...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2020-09-01 00:00:00
abstract：OBJECTIVE:This study intends to determine the prevalence of multidrug resistant (MDR) infections by A. baumannii, K. pneumoniae and P. aeruginosa in a tertiary care teaching hospital intensive care unit (ICU) in San Juan, PR, estimate the mortality rate and compare the morbidity and mortality differences among those tr...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2019-03-01 00:00:00
abstract：:Exposure to lead in children living on a former landfill in Vega Baja-Puerto Rico, a United States Environmental Protection Agency (USEPA) designated Superfund Site, is a major health concern. Direct contact with lead-contaminated soil is considered a major exposure source. However, there is a lack of information rega...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2003-06-01 00:00:00
abstract：BACKGROUND:Plant materials represent promising sources of anti-cancer agents. We developed and tested a novel extract from the ubiquitous plant Convolvulus arvensis. MATERIALS AND METHODS:Convolvulus arvensis components were extracted in boiling water, and small molecules were removed by high-pressure filtration. The ...
journal_title：Puerto Rico health sciences journal
pub_type： 杂志文章
doi：
更新日期：2002-12-01 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
pub_type： 杂志文章
doi：
更新日期：1999-12-01 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
pub_type： 杂志文章
doi：
更新日期：1988-08-01 00:00:00
