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At least 1,783 records · Page 99Linked to original sources
PubMed1997

Pediatric injuries in an Arabian Gulf country.

OBJECTIVE: To determine the common types of injuries among children (0-14 years) in Al-Ain, United Arab Emirates (UAE). DESIGN: A retrospective descriptive hospital based study. SETTING: Al-Ain Medical District, Al-Ain Teaching Hospital, UAE. SUBJECTS: All patients aged 0-14 years seen at Al-Ain Teaching Hospital for injuries during 1994. RESULTS: The number of children with an injury who attended the emergency room was 16,518 (69.9% boys; 30.1% girls). Injury rates were higher among non-UAE nationals. The most frequent reason for hospital admission was poisoning (41%). In the age group < 5 years, the most common causes were falls, blunt trauma, and burns or scalds, while in the 5-9 year and in 10-14 year groups the most frequent cause was road traffic accidents (RTAs). Fights and sporting injuries were also seen frequently in children aged 10-14 years. CONCLUSION: Injury rates were higher in boys and RTAs mostly occurred in children over 10 years. The majority of cases (56%) occurred among non-UAE nationals, who are usually of lower socio-economic status. RECOMMENDATION: Injuries can be prevented by developing strategies to substantially increase the profile of health education to parents and children, by educating policy makers and health professionals, and by environmental modification, legislation, and enforcement. The UAE government can play an important part by establishing and supporting injury prevention programs with these goals.

Accident Prevention↗
PubMed1998

Childhood deaths from unintentional injuries in rural areas of Iran.

OBJECTIVES: To determine the incidence of children's fatal unintentional injuries in rural areas of Iran. SETTING: Thirteen provinces of Iran, with a total population of 11.3 million for 1993-94. METHODS: A descriptive epidemiological study, which obtained information about all deaths using a questionnaire from 6267 Health Houses (rural health centres) for one year, 1993-94. Subjects were residents who died from unintentional injuries. RESULTS: Crude mortality rate was 4.33 per 1000. The number of childhood deaths from unintentional injuries was 1832 (16.6% of all deaths), more among males than females (43.7 v 31.2 per 100,000). Those under 1 had the highest rate, 114.7 per 100,000. The top three causes of deaths were traffic accidents (37.5%), drowning (17.9%), and burns and scalds (12.1%). CONCLUSIONS: During the past decade there has been a marked decline in deaths from infectious diseases in Iran. However, at present, a high proportion of childhood deaths in rural areas are from unintentional injuries. Because all age groups and both sexes are victims of unintentional injuries, and most injuries are preventable, they must be considered as a priority health problem in Iran.

Accidents↗
PubMed1999

Preventative pathology and childhood injury.

OBJECTIVE: To delineate a role for pathologists in coordinating the study of childhood deaths due to injury and in developing public safety recommendations. METHODS: Ongoing evaluation of cases of death due to injury occurring in children under 16 years, with formal review of all cases of fatal pediatric injuries recorded in the Department of Histopathology, Women's and Children's Hospital, over the past 35 years, has been undertaken as a part of the "Keeping Your Baby and Child Safe" programme. RESULTS: Information obtained from these cases has been used to formulate a number of safety recommendations dealing with unsafe sleeping environments, unsafe eating practices, scalding, and dangerous farm environments. Some products have been withdrawn from sale and other products modified. CONCLUSIONS: Pathologists often have extensive knowledge of childhood injuries, which can contribute significantly to health promotion initiatives and community education programmes.

Accident Prevention↗
PubMed2000

An international comparison of childhood injuries in Hong Kong.

OBJECTIVES: This study describes 7813 childhood injuries in Shatin, Hong Kong. Supplementary analyses include developmental specificity of external causes and comparison with international childhood injury data. METHODS: Children aged 0-15 attending the accident and emergency (A&E) department of the Prince of Wales Hospital in Hong Kong were recruited for the study. Attendance records of participants from the A&E department were analyzed. Details concerning the injury, including the International Classification of Diseases, ninth revision, external cause of injury (E code), nature of injury (N code), abbreviated injury scale, and injury severity scale constitute core measurements, along with participants' age, gender, and respective A&E procedural data. RESULTS: Males (65.7%) and fall related injuries (44.2%) predominate, while contusion (34.6%) is the prevailing nature of injury. Two age external cause dimensions are derived from a correspondence analysis. Children 0-1 years old are associated with falls, poisoning, scalds, and machinery related injury. Adolescents aged 12-15 are associated with motor related injury, animal related injury, and cuts/piercings. In comparison with international data, unintentional child injuries in Hong Kong comprised more falls but fewer poisonings and burns. CONCLUSION: A large proportion of falls, along with low proportion of poisonings and burns, are characteristics of childhood injury profile in Hong Kong. From the results of age external cause correspondence analysis, prevention strategies for different external cause should be developmentally specific.

Adolescent↗
PubMed2000

Description of Missouri children who suffer burn injuries.

OBJECTIVE: This study uses Missouri's inpatient and outpatient E code data system to describe the demographic characteristics of Missouri children who suffered burn injuries during 1994 and 1995. METHODS: Retrospective review of Missouri E code data. RESULTS: Altogether 8,404 children aged 0-14 years were treated for burn injuries in Missouri hospitals during 1994 and 1995. The rate of burn injury in Missouri children was 339 per 100,000/year. African-American boys 0-4 years living in urban counties were at increased risk. In addition, African-American girls ages 0-4 years living in counties with a high poverty rate had raised burn injury rates. Burns from hot objects and scalds from hot liquids caused more than half of the burns. CONCLUSIONS: Hospital based E coding has proven an invaluable tool for the study of burns and will, no doubt, prove equally useful for other injuries.

Burns↗
PubMed2002

Risk factors for burns in children: crowding, poverty, and poor maternal education.

OBJECTIVE: To characterize the presentation of burns in children and risk factors associated with their occurrence in a developing country as a basis for future prevention programs. DESIGN: Case-control study. SETTING: Burn unit of the National Institute of Child Health (Instituto Nacional de Salud del Niño) in Lima, Peru. METHODS: A questionnaire was administered to all consenting guardians of children admitted to the burns (cases) and general medicine (controls) units during a period of 14 months. Guardians of patients were questioned regarding etiology of the injury, demographic and socioeconomic data. RESULTS: 740 cases and controls were enrolled. Altogether 77.5% of the cases burns occurred in the patient's home, with 67.8% in the kitchen; 74% were due to scalding. Most involved children younger than 5 years. Lack of water supply (odds ratio (OR) 5.2, 95% confidence interval (CI) 2.1 to 1 2.3), low income (OR 2.8, 95% CI 2.0 to 3.9), and crowding (OR 2.5, 95%CI 1.7 to 3.6) were associated with an increased risk. The presence of a living room (OR 0.6, 95% CI 0.4 to 0.8) and better maternal education (OR 0.6, 95% CI 0.5 to 0.9) were protective factors. CONCLUSIONS: To prevent burns interventions should be directed to low socioeconomic status groups; these interventions should be designed accordingly to local risk factors.

Adolescent↗
PubMed1991

Nasal, axillary, and perineal carriage of Staphylococcus aureus among women: identification of strains producing epidermolytic toxin.

Following two outbreaks of staphylococcal scalded skin syndrome in a maternity unit, 500 pregnant women attending an antenatal clinic were screened for carriage of epidermolytic toxin producing Staphylococcus aureus. Nasal, axillary, and perineal swabs were collected from women whose gestational ages ranged from 12-40 weeks. Isolates of S aureus were purified, phage typed, and tested for methicillin sensitivity and production of epidermolytic toxin. The results showed that 164 (33%) women carried S aureus; of these, 100 (61%) were from the nose and three (2%) from axillae, but 41 (25%) strains were isolated from the perineum alone. Screening for nasal carriage alone will therefore miss 25% of carriers. More than one strain of S aureus was identified in seven of 20 women with multiple site carriage. Three (2%) methicillin resistant strains were isolated during the survey, and five (3%) isolates produced epidermolytic toxin. Phage typing identified 63 (34%) strains as non-typable, but 50% of isolates typed either groups I, II or III, and a further 10% represented varying combinations of these and other phage groups. These results provide baseline information on S aureus in the community, and identification of methicillin resistant and toxin producing strains shows a reservoir of outbreak potential which could become relevant on hospital admission of such a carrier.

Adolescent↗
PubMed2006

Injury mortality among ethnic minority groups in the Netherlands.

OBJECTIVES: To prepare a comprehensive overview of ethnic differences in injury related mortality in the Netherlands and to determine the role of area income and urbanisation degree. METHODS: Data for the period 1995-2000 were obtained from the population and cause of death registries. Injury related death rates were compared for persons from Turkish, Moroccans, Surinamese, and Antillean/Aruban origin with rates for the native Dutch population. RESULTS: Compared with the native Dutch population, all ethnic minorities combined had an increased mortality for all injuries together (RR = 1.29). Ethnic minorities experienced a significantly higher risk of death from pedestrian accidents (RR = 1.87), drowning (RR = 2.58), poisoning (RR = 1.76), fire and scalds (RR = 1.95), and homicide (RR = 3.24). Mortality for cyclists (RR = 0.53) and motorcycle drivers (RR = 0.47) was significantly lower among ethnic minorities compared with the native Dutch. Adjustment for area income and urbanisation decreased the mortality risk difference for most of the non-traffic injuries, but showed a difference in risk for car driver and passenger accidents (RR = 1.37). Compared with the native Dutch inhabitants, Surinamese and Antillean/Aruban population had a higher risk of total injury mortality (RR = 1.33 and 1.53 respectively), while Turkish and Moroccans had increased risk only for selected conditions. Inequalities in injury mortality were the highest among children and young adults, but persisted in the age group above 50 years old. CONCLUSION: Ethnic differences in injury mortality in the Netherlands strongly depended on type of injury, ethnic group, sex, and age. Policies should be aimed at the prevention of high risk injuries among the most vulnerable ages and ethnic groups.

Accidents↗
PubMed1991

Efficiency of bleeding of broilers after gaseous or electrical stunning.

The efficiency of bleeding of broilers (g blood/kg liveweight) was measured after stunning them with either 45 per cent carbon dioxide in air for two minutes or with 2 per cent oxygen (achieved by displacing air with argon) for two minutes or with an electric current (77 or 104 mA at 50 Hz for four seconds). The results indicated that the initial rate of bleeding was higher in the electrically stunned broilers with non-fibrillated hearts than in the gas stunned broilers and electrically stunned broilers with fibrillated hearts. This difference was significant up to 60 seconds after neck cutting (P less than 0.05) but after 140 seconds all the broilers had bled out to a similar extent (30 to 33 g/kg liveweight). It is concluded that after gas stunning the time interval between neck cutting and scalding should be 60 to 140 seconds.

Abattoirs↗
PubMed2006

Hypospadias in rams.

In an abattoir survey conducted in south-west England, 15 of 6521 rams aged three to 12 months had hypospadias; in 27 others the scrotum was completely or partly divided, but they had no other abnormalities of the urinary or genital systems. The lesions observed in 11 of the rams in the abattoir survey, and in four young rams and one mature ram found during visits to farms, are described in detail. Five of them had periscrotal openings of the urethra and in the other 11 the openings were in a perineal position, close to the anus. In all of them the penis was underdeveloped, the prepuce had failed to fuse and the galea faced in a caudal direction. They all had completely or partially divided scrotums, and signs of urine scalding of the scrotum were visible.

Abattoirs↗
PubMed1980

DNA-mediated transformation in mutants of phage group 2 Staphylococcus aureus.

A large pool of antibiotic resistant and auxotrophic mutants was isolated from the Staphylococcus aureus phage group 2 strains UT0002-19 and UT0017 by (1) antibiotic gradient plates, (2) trimethoprim selection, and (3) nitrosoguanidine mutagenesis, which sometimes was coupled by enrichment with either penicillin or methicillin. Strain UT0002-19 has a chromosomal determinant for exfoliative toxin (ET), which causes "scalded skin syndrome" in man. A few mutants were isolated from the phage group 1 strain UT0080, which also produces ET. Two transformation regimens, called the broth and plate methods, were devised for the phage group 2 strains. They employed 80 alpha as helper phage, and recipient cells were incubated with transforming DNA in the presence of Ca2+. Strain UT0080 was transformed using phage 55 as helper. Maximum competence of the phage group 2 strains occurred during early logarithmic growth in trypticase soy broth, but cells grown overnight on heart infusion agar were also competent. Transformation frequencies of all markers ranged from 10(-6) to 10(-8). For phage 80 alpha, a multiplicity of infection of 4 was optimal in transforming a mutant of strain UT0002-19. Transformation of gly, lin, met, ole, rif, and ser markers in S. aureus is reported for the first time. Ery and ole markers in all three strains exhibited cross-resistance. Mapping studies, similar to those performed by DNA-mediated transformation in the phage group 3 strain 8325, can now be commenced for phage group 2 strains of S. aureus in order to elucidate the molecular genetics of this medically important bacterium.

Anti-Bacterial Agents↗
PubMed2002

[Methods to measure the cutaneous transfer of radionuclides across the intact or lesioned epidermis, application to radiotoxicology].

Although skin contamination by radionuclides is the most common cause of nuclear workers accidents, few studies dealing with the penetration of radioactive contamination through the skin are available. This work is a review of experimental methods that allow to assess transfer of radionuclides through the skin in occupational conditions, with or without skin trauma. The first section describes the different methods applied for skin transfer assessment of chemicals used in pharmacology. Major radionuclide contamination accidents can be associated with skin traumas. Thus, the second section describes the adaptation of these methods to radiotoxicology. Finally, the third section is an in vivo investigation of cobalt transfer (57CoCl2) through undamaged and damaged skin which simulates different industrial accident conditions (excoriation, acid or alcalin burn, scalding, branding).

Accidents, Occupational↗
PubMed1985

Staphylococcal toxin syndromes.

Staphylococcus aureus produces many extracellular products often referred to as toxins, some with definite disease-causing potential. The enterotoxins A through E are common causes of acute food poisoning characterized by a short incubation period after ingestion of performed toxin followed by nausea, vomiting, abdominal pain, and diarrhea. The epidermolytic toxins (A, B) are absorbed from a local site of colonization or infection and affect the granular cell layer of skin to cause the painful erythroderma and desquamation of the scalded skin syndrome. Other unique S. aureus strains produce one or more products that appear to be formed at sites of focal infection (wound infection, vagina during menstruation and tampon use) with systemic absorption and generalized effects resulting in toxic shock syndrome.

Bacterial Toxins↗
PubMed2001

Resistance of macrophages to the suppressive effect of interleukin-10 following thermal injury.

The activation of a macrophage (Mphi)-dependent proinflammatory cascade following thermal injury plays an important role in the development of immunosuppression and increased susceptibility to subsequent sepsis in burn patients. In contrast, although interleukin (IL)-10, an anti-inflammatory cytokine that can downregulate M phi activity, has also been implicated in postburn immune dysfunction, its role in the regulation of M phi function postburn remains unclear. To study this, C57BL/6 female mice were subjected to a 25% total body surface area third-degree scald burn, and splenic Mphis were isolated 7 days later. Lipopolysaccharide (LPS)-stimulated IL-10, IL-6, tumor necrosis factor (TNF)-alpha, and nitric oxide (NO) production were significantly increased in the burn group compared with shams. Blockade of endogenous IL-10 activity enhanced IL-6 and TNF-alpha release, but not NO release, in both groups. The addition of exogenous IL-10 to the M phi cultures dose dependently suppressed production of these inflammatory mediators in both groups. The timing of IL-10 addition to the cultures in relation to LPS stimulation, however, was critical. The suppressive effect of exogenous IL-10 was attenuated in both groups when the cells were exposed to IL-10 at 4-6 h after LPS stimulation; however, Mphis from injured mice were significantly better able to maintain inflammatory mediator-productive capacity. The resistance of Mphis from injured mice to IL-10-mediated suppression correlated with decreased IL-10 receptor (IL-10R) expression and increased CD11b expression. These findings suggest that Mphis, following thermal injury, display resistance to suppression by IL-10 due in part to downregulation of IL-10R expression.

Animals↗
PubMed2000

Acute response of IGF-I and IGF binding proteins induced by thermal injury.

Previous studies demonstrate that thermal injury decreases circulating levels of insulin growth factor I (IGF-I) and alters the plasma concentration of several IGF binding proteins (IGFBP), but the mechanisms for these alterations have not been elucidated. In the current study, a 30% total body surface area full-thickness scald burn was produced in anesthetized rats, and animals were studied 24 h later. The plasma concentration of both total and free IGF-I was decreased (38 and 65%, respectively) in burn rats compared with values from time-matched control animals. Thermal injury decreased the IGF-I peptide content in liver approximately 40%, as well as in fast-twitch skeletal muscle (56-69%) and heart (28%). In contrast, IGF-I content in kidney was elevated by 36% in burn rats. Northern blot analysis of liver indicated that burn decreased the expression of small (1.7- and 0.9- to 1.2-kb) IGF-I mRNA transcripts but increased the expression of the 7.5-kb transcript. In contrast, there was a coordinate decrease in all IGF-I mRNA transcripts in muscle and kidney of approximately 30%. For liver, muscle, and kidney, there was no significant difference in the expression of growth hormone receptor mRNA between control and burn rats. Thermal injury increased plasma IGFBP-1 levels, and this change was associated with increased IGFBP-1 mRNA in both liver and kidney. IGFBP-3 levels in plasma were concomitantly decreased by burn injury. This change was associated with a reduction in IGFBP-3 mRNA in liver but an increased expression of IGFBP-3 in kidney and muscle. Thermal injury also decreased the concentration of the acid-labile subunit (ALS) in plasma and ALS mRNA expression in liver. Finally, hepatic expression of IGFBP-related peptide-1 was increased twofold in liver but was unchanged in kidney or muscle of burn rats. These results characterize burn-induced changes in various components of the IGF system in select tissues and thereby provide potential mechanisms for alterations in the circulating IGF system and for changes in tissue metabolism.

Animals↗
PubMed2002

Role of TNF-alpha in gut mucosal changes after severe burn.

Gut epithelial cell death by apoptosis is increased in the gut epithelium after severe burn associated with mucosal atrophy. We hypothesized that tumor necrosis factor (TNF)-alpha-TNF receptor (TNFR) interaction activates apoptosis in small bowel mucosal cells after severe burn. C57BL6 mice received a 30% total body surface area scald burn and were treated with neutralizing anti-TNF-alpha. The proximal small bowel was assessed for mucosal atrophy. Proliferation and apoptosis of mucosal cells were assessed by proliferative cell nuclear antigen-immunostaining and terminal deoxyuridine nick-end labeling assay, respectively. Mucosal height and mucosal cell number decreased after burn. Anti-TNF-alpha-treated mice showed significantly less mucosal atrophy. Proliferation of intestinal cells was not changed with burn or anti-TNF-alpha treatment. An over threefold increase in apoptotic cell number was seen after burn, which was diminished by anti-TNF-alpha treatment. Changes in gut mucosal homeostasis after severe burn are affected, in part, by the activation of apoptosis by TNF-alpha-TNFR interaction.

Animals↗
PubMed2000

Hepatic glutamine transporter activation in burn injury: role of amino acids and phosphatidylinositol-3-kinase.

Burn injury elicits a marked, sustained hypermetabolic state in patients characterized by accelerated hepatic amino acid metabolism and negative nitrogen balance. The transport of glutamine, a key substrate in gluconeogenesis and ureagenesis, was examined in hepatocytes isolated from the livers of rats after a 20% total burn surface area full-thickness scald injury. A latent and profound two- to threefold increase in glutamine transporter system N activity was first observed after 48 h in hepatocytes from injured rats compared with controls, persisted for 9 days, and waned toward control values after 18 days, corresponding with convalescence. Further studies showed that the profound increase was fully attributable to rapid posttranslational transporter activation by amino acid-induced cell swelling and that this form of regulation may be elicited in part by glucagon. The phosphatidylinositol-3-kinase (PI3K) inhibitors wortmannin and LY-294002 each significantly attenuated transporter stimulation by amino acids. The data suggest that PI3K-dependent system N activation by amino acids may play an important role in fueling accelerated hepatic nitrogen metabolism after burn injury.

Amino Acids↗
PubMed2001

Cell proliferation, apoptosis, NF-kappaB expression, enzyme, protein, and weight changes in livers of burned rats.

Thermal injury has been shown to alter gut epithelium and heart myocyte homeostasis by inducing programmed cell death. The effect of thermal injury on hepatocyte apoptosis and proliferation, however, has not been established. The purpose of this study was to determine whether a large thermal injury increases liver cell apoptosis and proliferation and whether these changes were associated with alterations in hepatic nuclear factor kappaB (NF-kappaB) expression and changes in liver enzymes and amount of protein. Sprague-Dawley rats received a 40% total body surface area scald burn or sham burn. Rats were killed and livers were harvested at 1, 2, 5, and 7 days after burn. Liver cell apoptosis was determined by terminal deoxyuridine nick end labeling (TUNEL) assay and cell proliferation by immunohistochemistry for proliferating cell nuclear antigen. Hepatic NF-kappaB expression was determined by Western blot, and total hepatic protein content was determined by protein assay. Protein concentration decreased after burn compared with sham controls (P < 0.05). Liver cell apoptosis, proliferation, and NF-kappaB expression in hepatocytes increased in burned rats compared with controls (P < 0.05). It was concluded that thermal injury induces hepatic cell apoptosis and proliferation associated with an increase in hepatic NF-kappaB expression and a decrease in hepatic protein concentration.

Alkaline Phosphatase↗