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1.
Body Image ; 41: 298-307, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35378339

RESUMO

Adolescents with a visible difference can experience difficult social situations, (e.g., people staring or making unwanted comments) and are at risk for mental health problems. Unfortunately, interventions for adolescents with a visible difference experiencing appearance-related distress are scarce and lack an evidence-base. This study tests the acceptability and feasibility of YP Face IT, an innovative online psychological intervention using social skills training and cognitive behavioural therapy, to Dutch adolescents. Adolescents aged 12-17 with a visible difference and access to an internet-enabled computer or tablet participated. They completed YP Face IT (eight sessions) and questionnaires were administered pre- and post-intervention. After completing YP Face IT, participants were interviewed to assess the acceptability and feasibility of YP Face IT and study procedures. Overall, 15 adolescents consented to participation, one person dropped out after one session. Most adolescents appreciated the intervention and all would recommend it to other adolescents experiencing appearance-related distress. Everyone reported learning experiences after following the sessions. Some struggled with motivation, but reminders by the website and research team were helpful. The Dutch YP Face IT intervention may be acceptable and the current study design is feasible to use. An RCT should be conducted to assess the effectiveness of the intervention.


Assuntos
Terapia Cognitivo-Comportamental , Intervenção Psicossocial , Adolescente , Imagem Corporal/psicologia , Terapia Cognitivo-Comportamental/métodos , Estudos de Viabilidade , Humanos , Inquéritos e Questionários
2.
Body Image ; 36: 34-44, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33160256

RESUMO

This study evaluated the effectiveness of an educational board game aimed at increasing knowledge of appearance-related issues, positive body image, media literacy, and acceptance of appearance diversity with British school children. Two hundred and fifty-nine children, aged 9-11 (Mage = 10.26), from three primary schools in South-West England participated in a two-arm matched cluster randomised controlled trial. Outcome measures were collected pre-, post- and at two-week follow-up. Knowledge of appearance-related issues significantly increased in the intervention group, compared to the control group post-intervention, but was not maintained at follow-up. There were no significant differences between groups for body appreciation, media literacy or acceptance of visible difference. Of the intervention arm, 78 % (n=117) they would like to play again and 85.3 % (n=128) thought other children would like to play. Qualitative data suggests participants learned the key messages of the game. The findings suggest 'Everybody's Different: The Appearance Game' is an enjoyable way to increase knowledge of appearance-related issues. In future, researchers should consider how to increase body appreciation, media literacy and acceptance of appearance diversity, for example by increasing the dosage of the game or using it in conjunction with discussions and lessons surrounding appearance diversity and appearance-altering conditions.


Assuntos
Imagem Corporal/psicologia , Jogos Experimentais , Serviços de Saúde Escolar , Criança , Inglaterra , Feminino , Humanos , Masculino , Avaliação de Programas e Projetos de Saúde , Instituições Acadêmicas
3.
Body Image ; 33: 38-46, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32092507

RESUMO

Living with a visible difference can entail challenging social situations, associated with psychosocial symptoms. However, it is not clear whether adolescents with a visible difference experience more anxiety and depression than unaffected peers. We aim to determine whether adolescents with a visible difference experience more symptoms of anxiety and depression than unaffected peers. A literature search was conducted in Embase, Medline Ovid, Web of Science, Cochrane CENTRAL, PsycINFO Ovid, and Google Scholar. Meta-analyses were done using random-effects models to calculate a standardised mean difference. Analyses for subgroups were used to study causes of visible difference. Eleven studies were identified (n = 1075, weighted mean age = 15.80). Compared to unaffected peers, adolescents with a visible difference experience more symptoms of anxiety (SMD = 0.253, 95 % CI [0.024, 0.482], p = .030), but not depression (SMD = 0.236, 95 % CI [-0.126, 0.599], p = .202). Adolescents with a skin condition did not experience more symptoms of anxiety (SMD = 0.149, 95 % CI [-0.070, 0.369], p = .182) or depression (SMD = 0.090, 95 % CI [-0.082, 0.262], p = .305) when compared to unaffected peers. Overall, more symptoms of anxiety are found in adolescents with a visible difference compared to peers. No differences in anxiety or depression were found for skin differences. Screening for anxiety is recommended.


Assuntos
Ansiedade , Imagem Corporal/psicologia , Depressão , Aparência Física , Adolescente , Criança , Feminino , Humanos , Masculino , Psicologia do Adolescente , Autorrelato , Adulto Jovem
4.
Ann Surg Oncol ; 26(10): 3166-3177, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31342392

RESUMO

BACKGROUND: Neoadjuvant chemotherapy (NACT) is often recommended for patients with node-positive invasive lobular carcinoma (ILC) despite unclear benefit in this largely hormone receptor-positive (HR+) group. We sought to compare overall survival (OS) between patients with node-positive ILC who received neoadjuvant endocrine therapy (NET) and those who received NACT. METHODS: Women with cT1-4c, cN1-3 HR+ ILC in the National Cancer Data Base (2004-2014) who underwent surgery following neoadjuvant therapy were identified. Kaplan-Meier curves and Cox proportional hazards modeling were used to estimate unadjusted and adjusted overall survival (OS), respectively. RESULTS: Of the 5942 patients in the cohort, 855 received NET and 5087 received NACT. NET recipients were older (70 vs. 54 years) and had more comorbidities (Charlson-Deyo score ≥ 1: 21.1% vs. 11.5%), lower cT classification (cT3-4: 44.2% vs. 51.0%), lower rates of mastectomy (72.5% vs. 82.2%), lower rates of pathologic complete response (0% vs. 2.5%), and lower rates of postlumpectomy (73.2% vs. 91.0%) and postmastectomy (60.0% vs. 80.8%) radiation versus NACT recipients (all p < 0.001). NACT recipients had higher unadjusted 10-year OS versus NET recipients (57.9% vs. 36.0%), but after adjustment, there was no significant difference in OS between the two groups (p = 0.10). CONCLUSIONS: Patients with node-positive ILC who received NET presented with smaller tumors, older age, and greater burden of comorbidities versus NACT recipients but had similar adjusted OS. While there is evidence from clinical trials supporting efficacy of NET in HR+ breast cancer, our findings suggest the need for further, histology-specific investigation regarding the optimal inclusion and sequence of endocrine therapy and chemotherapy in ILC.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Inibidores da Aromatase/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Carcinoma Lobular/tratamento farmacológico , Quimioterapia Adjuvante/mortalidade , Linfonodos/patologia , Terapia Neoadjuvante/mortalidade , Idoso , Neoplasias da Mama/patologia , Carcinoma Lobular/patologia , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Invasividade Neoplásica , Prognóstico , Taxa de Sobrevida
5.
J Plast Reconstr Aesthet Surg ; 71(12): 1777-1784, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30245017

RESUMO

Despite the potential negative impact of facial palsy, major gaps in understanding persist surrounding the treatment and care of those affected. This collaborative three-round Delphi process aimed to identify priorities for future facial palsy research, from the perspective of clinicians, researchers, patients and carers. It also determined whether the research priorities of patients and carers aligned with those of health professionals and researchers. In Round 1, participants (n = 85) were asked to generate research questions by focus groups or an online or postal survey. In Rounds 2 (n = 72) and 3 (n = 78), participants were asked to rate the priorities identified on a 5-point ordinal scale. Thirty-six questions reached the definition of 'high priority' consensus. Seven of each groups' top ten research priorities were shared. Prioritised questions included the provision and pathways of care, the psychosocial impact of living with facial palsy and the effective management of side effects. Establishing the research priorities in the field of facial palsy is a significant first step in ensuring that the future research agenda is focussed on topics that are considered important by both patients and health professionals.


Assuntos
Paralisia Facial/terapia , Pesquisa , Atitude do Pessoal de Saúde , Atitude Frente a Saúde , Cuidadores/psicologia , Consenso , Técnica Delphi , Paralisia Facial/psicologia , Feminino , Grupos Focais , Humanos , Masculino , Pessoa de Meia-Idade , Pesquisadores/psicologia , Reino Unido
6.
Vet Pathol ; 48(4): 856-67, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21118799

RESUMO

A research colony of Xenopus (Silurana) tropicalis frogs presented with nodular and ulcerative skin lesions. Additional consistent gross findings included splenomegaly with multiple tan-yellow nodular foci in the spleen and liver of diseased frogs. Copious acid-fast positive bacteria were present in touch impression smears of spleen, skin, and livers of diseased frogs. Histologically, necrotizing and granulomatous dermatitis, splenitis, and hepatitis with numerous acid-fast bacilli were consistently present, indicative of systemic mycobacteriosis. Infrequently, granulomatous inflammation was noted in the lungs, pancreas, coelomic membranes, and rarely reproductive organs. Ultrastructurally, both extracellular bacilli and intracellular bacilli within macrophages were identified. Frogs in the affected room were systematically depopulated, and control measures were initiated. Cultured mycobacteria from affected organs were identified and genetically characterized as Mycobacterium liflandii by polymerase chain reaction amplification of the enoyl reductase domain and specific variable numbers of tandem repeats. In recent years, M. liflandii has had a devastating impact on research frog colonies throughout the United States. This detailed report with ultrastructural description of M. liflandii aids in further understanding of this serious disease in frogs.


Assuntos
Infecções por Mycobacterium não Tuberculosas/veterinária , Mycobacterium/classificação , Xenopus , Animais , Surtos de Doenças , Feminino , Hemorragia , Fígado/patologia , Pulmão/patologia , Infecções por Mycobacterium não Tuberculosas/epidemiologia , Infecções por Mycobacterium não Tuberculosas/patologia , Ovário/patologia , Pâncreas/patologia , Baço/patologia
7.
Can J Urol ; 9(3): 1563-4, 2002 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12121582

RESUMO

We describe a case of salt-losing congenital adrenal hyperplasia due to 21-hydroxylase deficiency complicated by a right adrenal adenoma. The development of adrenal adenoma or carcinoma in-patients with congenital adrenal hyperplasia (CAH) is rare; the etiology is not clear but is thought to be related to inadequate glucocorticoid therapy. Tumor formation is postulated to be a consequence of ACTH hypersecretion, which results from the lack of glucocorticoid synthesis. Our patient underwent clitorectomy and multiple constructive procedures as a newborn baby; she was managed with hormone replacement for many years. However while she took adequate mineralocortocoid dosage, she chronically tended to take inadequate doses of glucocorticoid seeking to increase her muscle ability. She developed a 6.5 cm adrenal tumor. She was managed by a hand-assisted laparoscopic radical adrenalectomy. The tumor was histologically consistent with adrenal adenoma. The importance of compliance with her medications was emphasized.


Assuntos
Adenoma/etiologia , Neoplasias das Glândulas Suprarrenais/etiologia , Hiperplasia Suprarrenal Congênita/complicações , Hiperplasia Suprarrenal Congênita/terapia , Adulto , Feminino , Humanos
8.
J Rural Health ; 17(1): 59-62, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11354723

RESUMO

General surgeons have an essential role in the rural health care system. This telephone survey of 39 rural general surgeons in Missouri found that more than half were 55 or older. Most reported they practiced a broader scope of surgery than colleagues in urban areas, and half believed that current residency graduates are not prepared for surgical practice in rural areas. One-fifth had sought special training experiences to prepare them for rural practice. On balance, 70 percent of the respondents' practices was general surgery, 13 percent "specialty surgery" and 17 percent primary care. Many reported feeling professionally isolated. One-fourth had literally "returned home" to practice. The results suggest that if present trends continue, the next 10 years will see a substantial reduction in the number of general surgeons in rural Missouri.


Assuntos
Atitude do Pessoal de Saúde , Cirurgia Geral/estatística & dados numéricos , Serviços de Saúde Rural , Adulto , Distribuição por Idade , Idoso , Coleta de Dados , Atenção à Saúde , Feminino , Cirurgia Geral/educação , Humanos , Masculino , Pessoa de Meia-Idade , Missouri , Área de Atuação Profissional/estatística & dados numéricos , Serviços de Saúde Rural/estatística & dados numéricos , Recursos Humanos
9.
Am Fam Physician ; 63(8): 1557-64, 2001 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-11327431

RESUMO

Bacteria are responsible for approximately 5 to 10 percent of pharyngitis cases, with group A beta-hemolytic streptococci being the most common bacterial etiology. A positive rapid antigen detection test may be considered definitive evidence for treatment; a negative test should be followed by a confirmatory throat culture when streptococcal pharyngitis is strongly suspected. Treatment goals include prevention of suppurative and nonsuppurative complications, abatement of clinical signs and symptoms, reduction of bacterial transmission and minimization of antimicrobial adverse effects. Antibiotic selection requires consideration of patients' allergies, bacteriologic and clinical efficacy, frequency of administration, duration of therapy, potential side effects, compliance and cost. Oral penicillin remains the drug of choice in most clinical situations, although the more expensive cephalosporins and, perhaps, amoxicillin-clavulanate potassium provide superior bacteriologic and clinical cure rates. Alternative treatments must be used in patients with penicillin allergy, compliance issues or penicillin treatment failure. Patients who do not respond to initial treatment should be given an antimicrobial that is not inactivated by penicillinase-producing organisms (e.g., amoxicillin-clavulanate potassium, a cephalosporin or a macrolide). Patient education may help to reduce recurrence.


Assuntos
Antibacterianos/uso terapêutico , Faringite , Infecções Estreptocócicas/tratamento farmacológico , Streptococcus pyogenes , Adulto , Antibacterianos/administração & dosagem , Antibacterianos/economia , Criança , Humanos , Faringite/tratamento farmacológico , Faringite/microbiologia , Faringite/fisiopatologia , Infecções Estreptocócicas/fisiopatologia
10.
11.
Circulation ; 98(19 Suppl): II29-33; discussion II33-4, 1998 Nov 10.
Artigo em Inglês | MEDLINE | ID: mdl-9852876

RESUMO

BACKGROUND: Current demand for CABG surgery remains high, often exceeds available resources, and has led to the development of managed waiting lists. This study was designed to determine how being placed on a managed waiting list for > 6 weeks for CABG surgery affected patients' perceived quality of life in a Canadian center. METHODS AND RESULTS: Telephone interviews were carried out in the setting of a large urban hospital in northern Alberta. All participants were identified from 3 waiting lists of adult patients waiting for open heart surgery. A master list of patient statements was compiled to formulate the 47-item Waiting List Impact Questionnaire (WLIQ). A total of 102 patients completed the WLIQ by telephone interview. Patients (87.5%) indicated that their quality of life had deteriorated since being placed on the waiting list. None of the patients perceived an improvement in their quality of life. Frequency data for the WLIQ provided a broad, multidimensional perspective of the experience of waiting for CABG surgery and its impact on perceived quality of life. Negative impact was found in each of 5 main themes: employment and income, physical stress, social support, frustration, and quality of life. CONCLUSIONS: This study indicates that patients perceived a negative impact on their quality of life after being placed on a managed waiting list for CABG surgery. In the allocation of healthcare resources, attention should be paid to the impact of waiting on patients' physical well-being as well as on quality of life.


Assuntos
Ponte de Artéria Coronária , Programas de Assistência Gerenciada , Qualidade de Vida , Autoimagem , Listas de Espera , Adulto , Idoso , Ansiedade/etiologia , Emprego , Feminino , Humanos , Entrevistas como Assunto , Masculino , Pessoa de Meia-Idade , Esforço Físico , Apoio Social , Inquéritos e Questionários
12.
Mo Med ; 95(3): 118-22, 1998 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-9529896

RESUMO

BACKGROUND: The objective of this study was to describe the practices of family practitioners in Missouri in the treatment of patients with ADHD. METHOD: The 634 Diplomats of the American Board of Family Practice of Missouri were surveyed. RESULTS: Respondents considered stimulant medication to be effective treatment for ADHD; methylphenidate was the drug of choice. Most respondents (79%) reported recommending behavioral management to parents. Reported efficacy of stimulants (item 2) and use of behavior management (item 8) were related in the negative direction, while reported efficacy of stimulants and using stimulants alone (item 13) were related in the positive direction. CONCLUSIONS: Family practitioners in Missouri used accepted treatments for ADHD, but in general, practices were not entirely consistent with the current standard of care. Physicians' belief in the efficacy of stimulants may have prejudiced them against multimodal treatment.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Estimulantes do Sistema Nervoso Central/uso terapêutico , Metilfenidato/uso terapêutico , Transtorno do Deficit de Atenção com Hiperatividade/terapia , Terapia Comportamental , Criança , Pré-Escolar , Terapia Combinada , Medicina de Família e Comunidade , Humanos
13.
Fam Med ; 29(10): 705-8, 1997.
Artigo em Inglês | MEDLINE | ID: mdl-9397359

RESUMO

BACKGROUND AND OBJECTIVES: This study examined resident partnerships and their effect on graduates' practice patterns. METHODS: The study authors surveyed graduates from a residency program that used resident partnerships. We also surveyed the graduates' current practice partners, and they served as a comparison group. RESULTS: The graduates' response rate was 86%, and their current practice partners' response rate was 61%. Graduates from a partnership program rated themselves better trained for outpatient medicine and more comfortable communicating with other physicians and working within a patient care team; they were also slightly less likely to practice inpatient medicine. Reported benefits during residency included enhanced availability for continuity clinics, more emotional and intellectual support, and more flexible work schedules. CONCLUSIONS: Graduates valued partnerships during their training and reported being better prepared to work with other physicians in ambulatory settings.


Assuntos
Assistência Ambulatorial , Educação de Pós-Graduação em Medicina , Medicina de Família e Comunidade/educação , Internato e Residência , Prática Associada , Adulto , Humanos , Internato e Residência/organização & administração , Internato e Residência/normas , Pessoa de Meia-Idade , Missouri , Prática Associada/organização & administração , Padrões de Prática Médica , Inquéritos e Questionários
14.
Fam Med ; 29(6): 410-3, 1997 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-9193912

RESUMO

BACKGROUND AND OBJECTIVES: To facilitate resident training in the ambulatory setting, a few family practice residency programs use a partnership system to train residents. Partnerships are pairs of residents from the same year that rotate together on inpatient services. We identified and characterized the advantages and disadvantages of partnership programs in family practice residencies. METHODS: We conducted a national survey of family practice residencies, followed by phone interviews with residency directors of programs with partnerships. RESULTS: A total of 305 of 407 (75%) residencies responded; 10 programs fit our definition of partnership. Program directors were positive about resident partnerships. Benefits included improved outpatient continuity, enhanced medical communication skills, and emotional and intellectual support. Disadvantages were decreased inpatient exposure and difficulty coordinating residents' schedules. CONCLUSIONS: Directors were favorable about partnerships, which seem to be an underutilized technique to improve residency training.


Assuntos
Medicina de Família e Comunidade/educação , Internato e Residência/métodos , Humanos , Avaliação de Programas e Projetos de Saúde , Estados Unidos
15.
J Small Anim Pract ; 38(12): 554-60, 1997 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-9444637

RESUMO

Skeletal muscle extra-aortic counterpulsation was performed in seven dogs with dilated cardiomyopathy. A left latissimus dorsi dynamic descending thoracic aortomyoplasty was used as the autologous counterpulsator. Pulse train stimulation in diastole was used to initiate contraction and fibre type transformation. Two of the dogs died within 48 hours of surgery. The device was successfully activated in the five remaining dogs, but in one individual it failed within 48 hours of activation. Serial echocardiographic examinations of dogs in which the device functioned successfully (n = 4) showed trends towards the decrease in the left ventricular systolic internal dimension, left ventricular diastolic internal dimension, E-point to septal separation and left atrial diameter in systole seven to 14 days following the procedure, although these changes failed to persist in the long-term. The results suggest that skeletal muscle for cardiac assistances such as extra-aortic muscle counterpulsation, might be a therapeutic option for dogs with cardiac failure due to dilated cardiomyopathy.


Assuntos
Cardiomiopatia Dilatada/veterinária , Contrapulsação/veterinária , Doenças do Cão/cirurgia , Músculo Esquelético/fisiologia , Animais , Baixo Débito Cardíaco/fisiopatologia , Baixo Débito Cardíaco/cirurgia , Baixo Débito Cardíaco/veterinária , Cardiomiopatia Dilatada/fisiopatologia , Cardiomiopatia Dilatada/cirurgia , Contrapulsação/métodos , Doenças do Cão/fisiopatologia , Cães , Ecocardiografia/veterinária , Ecocardiografia Doppler/veterinária , Eletrocardiografia/veterinária , Feminino , Masculino , Disfunção Ventricular Esquerda/fisiopatologia , Disfunção Ventricular Esquerda/cirurgia , Disfunção Ventricular Esquerda/veterinária
17.
J Bacteriol ; 177(17): 5193-6, 1995 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-7665506

RESUMO

Two hundred forty-five consecutive amino acids of the sigma 70 subunit of Escherichia coli RNA polymerase are not conserved in the homologous protein of Bacillus subtilis. We show that their deletion from a sigma 70-32 hybrid protein caused no severe loss of function in vivo, while sigma 70 itself retained considerable function in vitro.


Assuntos
RNA Polimerases Dirigidas por DNA/genética , Escherichia coli/genética , Deleção de Sequência , Fator sigma/genética , Fatores de Transcrição , Bacillus subtilis/enzimologia , Bacillus subtilis/genética , Sequência de Bases , RNA Polimerases Dirigidas por DNA/metabolismo , Escherichia coli/enzimologia , Proteínas de Choque Térmico/metabolismo , Dados de Sequência Molecular , Fator sigma/metabolismo
18.
Acta Physiol Scand ; 155(1): 99-107, 1995 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-8553883

RESUMO

Furosemide has been reported to produce disproportional changes in blood flow in cortical zones and to inhibit tubuloglomerular feedback (TGF), suggesting that furosemide might alter the intracortical distribution of glomerular filtrate. We have tested this hypothesis by a new method for measuring local and total glomerular filtration rate (GFR) based on proximal tubular accumulation of the basic polypeptide aprotinin (mol wt 6513). Local GFR was calculated in tissue samples dissected from outer cortex (OC), inner cortex (IC) and the corticomedullary border zone (CM) from the plasma clearances of two aprotinin tracers injected i.v. before and after a 3 min i.v. infusion of 25 mg kg-1 furosemide. The mean of five samples from each region was used to determine zonal GFR. Isotonic saline was infused at a rate corresponding to urine flow. Furosemide reduced whole kidney GFR from 1.17 to 1.00 mL min-1 and gave a similar reduction of renal artery blood flow. Urine flow increased from 0.6 to 17% of GFR. Haematocrit (approximately 0.48) and plasma protein concentration (approximately 55 mg mL-1) were maintained while the arterial blood pressure tended to decline (118 +/- 5 mmHg to 108 +/- 6 mmHg, P < 0.05). GFR in OC, IC and CM (1.58, 1.18, 0.42 mL min-1 g-1) fell to 87, 88 and 88% of control after furosemide infusion respectively. The furosemide/control ratio for each sample showed a coefficient of variation of about 3%. We conclude that furosemide produced a modest GFR reduction that was uniform throughout the renal cortex. The homogenous GFR response suggests a similar TGF constriction tone in preglomerular vessels of deep and superficial nephrons.


Assuntos
Diuréticos/farmacologia , Furosemida/farmacologia , Taxa de Filtração Glomerular/efeitos dos fármacos , Glomérulos Renais/efeitos dos fármacos , Túbulos Renais Proximais/efeitos dos fármacos , Animais , Velocidade do Fluxo Sanguíneo/efeitos dos fármacos , Glomérulos Renais/fisiologia , Túbulos Renais Proximais/fisiologia , Masculino , Ratos , Ratos Sprague-Dawley , Resistência Vascular/efeitos dos fármacos
19.
Hum Mol Genet ; 4(7): 1217-24, 1995 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-8528212

RESUMO

A region of intron 22 of the factor VIII gene, which contains factor VIII-associated gene A (F8A), is repeated twice more nearer the Xq telomere. It has been proposed that intrachromosomal homologous recombination occurs between the intron 22 repeat and either of the two extragenic copies, resulting in the recurrent inversions that cause almost half of all cases of severe haemophilia A. We have precisely defined the repeated region as 9.5 kb of DNA which we have termed int22h (intron 22 homologous region). The junctions of the inversions examined were shown to represent precise exchanges between the int22h repeats, thus providing conclusive evidence for homologous recombination. The three copies of int22h were compared along 8 kb of their length, using chemical mismatch analysis, and found to be 99.9% similar. The presence of such long, almost identical inverted repeats near the Xq telomere could account for the high frequency at which the inversions occur.


Assuntos
Inversão Cromossômica , Fator VIII/genética , Íntrons , Sequências Repetitivas de Ácido Nucleico , Sequência de Bases , Desoxirribonucleases de Sítio Específico do Tipo II/metabolismo , Fator VIII/metabolismo , Hemofilia A/genética , Humanos , Masculino , Dados de Sequência Molecular , Reação em Cadeia da Polimerase , Recombinação Genética , Análise de Sequência de DNA
20.
Hosp Health Serv Adm ; 40(2): 247-62, 1995.
Artigo em Inglês | MEDLINE | ID: mdl-10143034

RESUMO

This article examines the implications resulting from the closure of 25 rural hospitals during 1990. The implications are evaluated by estimating travel distance and time to the nearest open hospitals. In addition, the types of services offered in the hospitals studied were measured to provide a view of potential change in access to services. The average travel distance and time to the nearest hospital after closure was 25.7 miles and 30.2 minutes, respectively. In most cases, the remaining hospitals offered a broader scope of services than did the hospitals that closed. A possible interpretation is that the hospital closures resulted in a tradeoff between breadth of services and rapid access for emergency conditions.


Assuntos
Fechamento de Instituições de Saúde/estatística & dados numéricos , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Hospitais Rurais/provisão & distribuição , Área Programática de Saúde , Coleta de Dados , Geografia , Administração de Linha de Produção/estatística & dados numéricos , Fatores de Tempo , Meios de Transporte , Estados Unidos
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