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1.
Family history in primary open-angle glaucoma   总被引:2,自引:0,他引:2  
A family history of glaucoma was found in 50% of patients with primary open-angle glaucoma (POAG) and 43% of patients with ocular hypertension (OH). Positive family history was twice as prevalent in those with OH and either HLA-B7 or B12 antigens than in OH with neither antigen (P less than .01). Although POAG occurred equally in men and women, the prevalence of a positive family history of glaucoma on the maternal side of the family in POAG patients was six to seven times greater than on the paternal side (P less than .0005). However, in patients with OH, but no glaucomatous field loss, there was no difference in prevalence of maternal and paternal family history. Even in OH with HLA-B7 or B12 antigens, there was no predominance of maternal family history. The implication that offspring were more likely to develop POAG when their mother's side of the family rather than their father's side had the disease has provided an additional potentially useful risk factor in patients with OH. In addition, it has raised interesting questions as to possible maternal cytoplasmic factors in the transmission and pathogenesis of POAG.  相似文献   

2.
In this review, the author evaluates the empirical support for the claims that various aspects of family dysfunction are risk factors for completed suicide or suicidal symptoms in childhood or adolescence. There is consistent evidence that a history of physical or sexual abuse is a risk factor and some evidence for other risk factors, including poor family or parent-child communication, loss of caregiver to separation or death, and psychopathology in first-degree relatives. However, the researchers of the vast majority of studies did not attend to whether the putative risk factors preceded the development of suicidal symptoms; thus, most of the claims regarding family risk factors are not justified by their research designs and findings. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

3.
Associations between parents' poor marital adjustment, parent–child discord, affectionless control, low family cohesion, and parental divorce and Diagnostic and Statistical Manual of Mental Disorders (DSM-III) diagnoses were explored in a study of 220 offspring of parents with and without major depression. Family risk factors were more prevalent among offspring of depressed parents. Risk factors were associated with major depression and any diagnosis for children of nondepressed parents; they were associated with conduct disorder for both groups. Parental depression was more important than family risk factors in models predicting major depression, anxiety disorders, and any diagnosis. Both parental depression and family risk factors were significant predictors of conduct disorder. Implications for the etiology of psychopathology and for analytic strategies are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

4.
We conducted a case-control study of squamous cell carcinoma of the skin (SCC) in a cohort of people followed from 1987 to 1994. Subjects were residents of Geraldton, Western Australia, who were between 40 and 64 years of age in 1987. On 2 occasions, in 1987 and 1992, dermatologists examined participants for skin cancers. Subjects were also asked on several occasions about skin cancers that they had had treated. Migrants to Australia had reduced risks of SCC. Furthermore, people who migrated to Australia early in life or, equivalently, lived in Australia for a long time had a higher risk than immigrants who arrived later in life or more recently. People who had southern European ancestry had a much lower risk of SCC than other subjects, most of whom were of British or northern European origin. Among Australian-born subjects of British or northern European ancestry, the skin's sensitivity to sunlight was strongly associated with SCC. The pigmentary traits of hair colour, eye colour and skin colour showed weaker associations. The degree of freckling on the arm was strongly predictive of risk. The risk of SCC increased strongly with increasing evidence of cutaneous solar damage and was most strongly associated with the number of solar keratoses. Our results show that sensitivity to sunlight and high levels of exposure to sunlight are important determinants of the risk of SCC.  相似文献   

5.
The purpose of this study was to identify variables that are antecedents for unipolar depression. Information regarding a number of sociodemographic and psychosocial variables was collected on a community sample of adults (N?=?998), 562 of whom were interviewed and diagnosed according to Schedule for Affective Disorders and Schizophrenia-Research Diagnostic Criteria procedures and received a second assessment on most of the variables. The average time elapsed between Time 1 and Time 2 was 8.3 months. Depressive symptomatology was also assessed with the Center for Epidemiologic Studies Depression Scale CES-D. A number of variables emerged, which predicted both the development of an episode of depression and elevated CES-D scores. These include reporting an elevated level of depressive and other symptoms and having experienced an elevated level of stress. Variables that are predictive of developing an episode of depression include young age, being female, and having had a previous episode of depression. The presence of depressogenic cognitions was uniquely predictive of an elevation of depression symptoms as measured by the CES-D. Virtually no variables demonstrated a significant moderating effect on the stress–depression relation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

6.
Alkaline phosphatase-conjugated oligonucleotide probes were developed to detect the gene coding for Vero toxin 1 (VT1) and Vero toxin 2 (VT2). Using these probes, 3 hr was enough to detect VT genes when suspicious colonies of enterohaemorrhagic Escherichia coli (EHEC) were obtained on an agar plate. The results of a hybridization test with 144 isolates of EHEC O157 and one isolate of Shigella dysenteriae Type 1 agreed exactly with the immunological detection, reversed passive latex agglutination (RPLA) test, of VTs in their culture supernatants. The sensitivity levels of these probes for the detection of VT genes were 100%. The specificity of these probes were also tested with a total of 1,002 strains of Escherichia coli other than EHEC and 8 strains of Shigella sp. other than Shigella dysenteriae Type 1; the results showed 100% specificity.  相似文献   

7.
BACKGROUND: The need to improve therapy regimes, determine prognosis, and study biological properties of tumors extracorporally led to development of different experimental systems. In order to approach the in vivo situation, specific properties of the tumors of origin should be retained by the cells in culture over relatively long periods. However, culture conditions may change expression of cellular antigens. METHODS: Cryosections of a hypopharyngeal carcinoma were compared in this respect with different cultivation systems (2-dimensional monolayers [ML], 3-dimensional multicellular tumor spheroids [MTS] and substrate cultures on Gelita) in regard to expression of cytokeratins (CK) 1, 7, 10, 14, 18 and 19, vimentin, neurofilament (NF) kD200 and 68, ganglioside GD2, oncogene products (P53 mutant and wild), and membrane-associated antigens (HLA-ABC and -DR, epidermal growth factor receptor EGFR). RESULTS: Semiquantitative immunohistochemical methods revealed differences in expression of CK1, 14 and 19, GD2, and P53 mutant between these systems. CONCLUSION: Pronounced expression of markers in MTS compared to original biopsy and monolayer emphasizes the importance of cell-cell contact and 3-dimensionality or metabolic stress. However, weak marker expression within substrate cultures may reflect loose cell-cell contact observed. In these experiments, the antigenic configuration of MTS resembled the one of the original tumor more than the other culture systems: monolayer and growth on substrate. As vimentin and NF are not expressed by healthy epithelial cells of adults, occurrence of intratumoral vimentin and NF could point to derepression of early differentiation antigens.  相似文献   

8.
A prospective study of family history and the risk of colorectal cancer   总被引:1,自引:0,他引:1  
BACKGROUND: A family history of colorectal cancer is recognized as a risk factor for the disease. However, as a result of the retrospective design of prior studies, the strength of this association is uncertain, particularly as it is influenced by characteristics of the person at risk and the affected family members. METHODS: We conducted a prospective study of 32,085 men and 87,031 women who had not previously been examined by colonoscopy or sigmoidoscopy and who provided data on first-degree relatives with colorectal cancer, diet, and other risk factors for the disease. During the follow-up period, colorectal cancer was diagnosed in 148 men and 315 women. RESULTS: The age-adjusted relative risk of colorectal cancer for men and women with affected first-degree relatives, as compared with those without a family history of the disease, was 1.72 (95 percent confidence interval, 1.34 to 2.19). The relative risk among study participants with two or more affected first-degree relatives was 2.75 (95 percent confidence interval, 1.34 to 5.63). For participants under the age of 45 years who had one or more affected first-degree relatives, the relative risk was 5.37 (95 percent confidence interval, 1.98 to 14.6), and the risk decreased with increasing age (P for trend, < 0.001). CONCLUSIONS: A family history of colorectal cancer is associated with an increased risk of the disease, especially among younger people.  相似文献   

9.
Primary hepatocyte cultures prepared from male beagle dog liver were used to determine susceptibility of the canine liver to tetracycline-induced steatosis. The effects of the drug on mitochondrial lipid metabolism and intracellular triglyceride accumulation were monitored at the same time that steatosis was detected by light microscopy and quantitated using lipid-specific stains. Exposure of primary canine hepatocyte cultures to tetracycline for 24-48 h resulted in concentration-dependent, significant increases in the Oil Red O-stained lipid inclusions. Microscopic examination of the total stained areas suggested that increases over control levels were due primarily to the increase in the size of the lipid inclusions rather than in the number. Biochemical analyses for triglyceride content and histological staining with Nile red, another neutral lipid-specific dye, confirmed a specific increase in intracellular triglyceride following a 24-h exposure to noncytotoxic levels of tetracycline beta-oxidation studies based on the oxidation of [14C]palmitic acid or [14C]palmitoyl carnitine demonstrated a concentration-dependent inhibition of mitochondrial but not peroxisomal beta-oxidation in hepatocytes after a 24-h exposure to tetracycline. In vitro incubation of tetracycline with mitochondria isolated from dog liver showed similar concentration-dependent inhibition. This study clearly indicates that the canine hepatocyte is susceptible to tetracycline-induced steatosis. Triglyceride accumulation was concomitant with the inhibition of mitochondrial lipid metabolism, indicating that this is a primary mechanism leading to steatosis in dog hepatocytes following tetracycline exposure.  相似文献   

10.
Objective: This study longitudinally investigated psychological and social risk factors consistent with the Theory of Triadic Influence (TTI) as predictors of adolescent smoking transitions. Design: Among 4218 adolescents, five psychological risk factors (i.e., parent-noncompliance, friend-compliance, rebelliousness, low achievement motivation, and thrill seeking) were assessed in 9th grade (age 14), two social influence risk factors (i.e., parents’ and close friends’ smoking) were assessed in Grades 3 (age 8) and 9 (age 14), respectively. Main Outcome Measures: Adolescent smoking transitions occurring between the 9th and 12th (ages 14–17) grade interval. Results: The probabilities contributed by each of the five psychological risk factors to the overall probability of making a specific smoking transition were: 22% to 27% for the transition from never to trying smoking, 10% to 13% for the transition from trying to monthly smoking, and, for three of the five risk factors, 11% to 16% for the transition from monthly to daily smoking. For predicting trying smoking, the probability contributed by these psychological factors was greater than the probability contributed by each parent’s and close friend’s smoking. Parent-compliance had a higher contribution to the probability of trying smoking when an adolescent’s parent smoked (p  相似文献   

11.
This research tested for moderation in the relation of family risk factors (parent–child conflict, family life events, and parental substance use) to adolescent substance use (tobacco, alcohol, and marijuana). A sample of 1,810 participants was surveyed at the mean age of 11.5 years and followed with 2 yearly assessments. Temperament dimensions were assessed with the Revised Dimensions of Temperament Survey and the Emotionality, Activity, and Sociability Inventory. Multiple-group latent growth analyses indicated moderation occurred through (a) alteration of effects of parental variables on the adolescent substance use intercept and on the peer substance use intercept and slope and (b) alteration of the effect of the peer substance use intercept on the adolescent substance use slope. The impact of parental risk factors was decreased among participants with higher task attentional orientation and positive emotionality (resilience effect) and was increased among participants with higher activity level and negative emotionality (vulnerability effect). Results from self-report data were corroborated by independent teacher reports. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

12.
The aim of this study was to provide valid data on the demography, medical history and clinical findings among adult women presenting with urinary incontinence to general practitioners. In a rural community in Norway, all women > 20 years who consulted their general practitioner for urinary incontinence during a 3 year period were included in a prospective study. A thorough medical history and both a general and focused clinical examination were undertaken. Gynecological examination, stress provocation test, and 48 h frequency/volume chart and pad weighing test were also performed. 105 women were included (4.4% of women > 20 years in the total population). Mean age was 57 years, 64% were postmenopausal. A lot of comorbidity was reported. Duration of incontinence was > 5 years in 49%. By a severity index, 64% were classified as severe, 28% as moderate and 8% as having slight incontinence. 59% were using protective pads or garments. Mean leakage per 24 h was 31 g. 38% had significant genital prolapse. Contractility of the pelvic floor muscles was weak in 28%. Diagnostic classification revealed 50% stress incontinence, 10% urge and 40% mixed incontinence. 42% of the patients were a great deal or much bothered by their incontinence. Patients with stress incontinence were less bothered than others. Women presenting with urinary incontinence at a primary care level are prevalent, and often have significant incontinence. It is a challenge for the general practitioners to investigate and treat these patients optimally.  相似文献   

13.
BACKGROUND: Although antibiotic prophylaxis against infective endocarditis is recommended, the true risk factors for infective endocarditis are unclear. OBJECTIVE: To quantitate the risk for endocarditis from dental treatment and cardiac abnormalities. DESIGN: Population-based, case-control study. SETTING: 54 hospitals in the Philadelphia area. PATIENTS: Persons with community-acquired infective endocarditis not associated with intravenous drug use were compared with community residents, matched by age, sex, and neighborhood of residence. MEASUREMENTS: Information on demographic characteristics, host risk factors, and dental treatment was obtained from structured telephone interviews, dental records, and medical records. RESULTS: During the preceding 3 months, dental treatment was no more frequent among case-patients than controls (adjusted odds ratio, 0.8 [95% CI, 0.4 to 1.5]). Of 273 case-patients, 104 (38%) knew of previous cardiac lesions compared with 17 controls (6%) (adjusted odds ratio, 16.7 [CI, 7.4 to 37.4]). Case-patients more often had a history of mitral valve prolapse (adjusted odds ratio, 19.4 [CI, 6.4 to 58.4]), congenital heart disease (adjusted odds ratio, 6.7 [CI, 2.3 to 19.4]), cardiac valvular surgery (adjusted odds ratio, 74.6 [CI, 12.5 to 447]), rheumatic fever (adjusted odds ratio, 13.4 [CI, 4.5 to 39.5]), and heart murmur without other known cardiac abnormalities (adjusted odds ratio, 4.2 [CI, 2.0 to 8.9]). Among case-patients with known cardiac lesions--the target of prophylaxis--dental therapy was significantly (P = 0.03) less common than among controls (adjusted odds ratio, 0.2 [CI, 0.04 to 0.7] over 3 months). Few participants received prophylactic antibiotics. CONCLUSIONS: Dental treatment does not seem to be a risk factor for infective endocarditis, even in patients with valvular abnormalities, but cardiac valvular abnormalities are strong risk factors. Few cases of infective endocarditis would be preventable with antibiotic prophylaxis, even with 100% effectiveness assumed. Current policies for prophylaxis should be reconsidered.  相似文献   

14.
A case-control study of traffic risk factors and child pedestrian injury   总被引:1,自引:0,他引:1  
BACKGROUND: Pedestrian injuries in children constitute an important cause of mortality and morbidity. Specific hazards which contribute to these injuries need to be identified to enable the development of preventive strategies. METHODS: A population-based case-control study was conducted in which 40 aspects of traffic and road environment that contribute to the likelihood of childhood pedestrian injury were examined. The factors of interest were measured at 100 places of injury and 200 control sites between December 1991 and December 1993. RESULTS: The volume of traffic (odds ratio [OR] = 2.16 for an increase of 100 vehicles per hour) in combination with the proportion of vehicles exceeding the speed limit (OR = 1.04) for each 1% increase in average speed, and the presence of footpaths (OR = 11.0) were associated with significant increase in the risk of injury. A graded inverse relationship was present between socioeconomic status and the odds of pedestrian injury. CONCLUSIONS: These findings have obvious implications for public health as features of the physical environment are potentially modifiable.  相似文献   

15.
Discusses a demonstration project, conducted in Colorado during 1976–1978, designed to study what effect the availability of two new benefits under Medicare, the inclusion of the services of independent psychologists and the expansion of existing mental health coverage, will have on the use and cost of total mental health services and of other medical and hospital services. Questions that express the concerns of legislators also will be evaluated: (a) Can psychology agree on the definition of a psychologist who can deliver services on an autonomous basis, and (b) can psychology assure quality service on an independent basis? Procedures to define provider status, provide peer review, and identify reimbursable services have been instituted to address these questions and should prove to be precedent setting in future national health legislation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

16.
Compared the smoking behavior and smoking-related beliefs of 816 young adult smokers who did and did not have a family history of cigarette smoking (FHS). Those with an FHS smoked more cigarettes in a typical day, smoked for more years, perceived themselves as more addicted to cigarettes, had more positive beliefs about the psychological consequences of smoking, and reported stronger pleasurable relaxation motives and stimulation motives for smoking compared with their peers who had no FHS. Thus, smokers with an FHS were more committed smokers and viewed smoking as having more positive psychological benefit than did their peers without an FHS. Such individual differences may be mediated through both social–environmental and genetically influenced mechanisms. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

17.
The relationship between reproductive factors and risk of lymphoid neoplasms was investigated in a hospital-based case-control study conducted in northern Italy on women with histologically confirmed incident Hodgkin's disease (HD) (n = 68), non-Hodgkin's lymphomas (NHL) (n = 180) and multiple myelomas (MM) (n = 71), and 448 controls admitted to hospitals, for acute, non-neoplastic, non-immunological and non-gynecological conditions. The odds ratios (OR) of HD were 0.6 for > or = 3 pregnancies compared to nulligravidae, and 0.5 for > or = 1 total (spontaneous and induced) abortions compared to women reporting no abortions. Compared to nulliparae, the OR of HD was 0.9 in parae and 0.3 in those with first birth when aged < 20 years. The OR of NHL and MM in relation to number of pregnancies, abortions and births, age at first birth and time since last birth were close to unity. Results were similar for the relation between reproductive factors and HD in women younger than 50 years. The OR of NHL was above unity (OR 2.2, 95% CI 1.0 to 4.9) for women aged < 50 years reporting one or more pregnancies as compared to nulliparae, and for women reporting the last birth since less than 10 years (OR 2.9, 95% CI 1.1 to 7.4). Early events in pregnancy, including changes in immunological status, rather than exposure to female sex hormones are likely mechanisms for the protection of pregnancies and abortions on the risk of HD.  相似文献   

18.
In the past 30 years, the "new history of psychology" and its adherents have advocated a critical approach to scholarship, increased use of primary sources, a focus on sociopolitical forces, and the active inclusion of psychologists from underrepresented groups. This article argues that many scholars exaggerate the differences between old and new history of psychology, and that where the differences are indeed large, those discrepancies reveal certain limitations unique to the new history approach. These limitations, presented in the form of 5 questions posed to new historians, lead to a discussion of professional issues in the history of psychology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

19.
BACKGROUND: Stroke is the cardiovascular disease which causes the greatest number of deaths in Galicia, mortality, particularly in women, being higher than in the rest of Spain. The aim of this study was to investigate the risk factors of stroke and its importance in Galicia. METHODS: A hospitalary study of cases and controls was performed including 76 patients with stroke and 76 controls individually paired for age, sex, population habitat and date of admission with anamnesis, weight, height and blood pressure, analysis and electrocardiogram being carried out in all. RESULTS: An association was found between the disease and family history of stroke (odds ratio = 3.6, confidence interval 95% = 1.2-13.3), personal history of stroke (17.9; 4.0-79.1), personal history of atrial fibrillation (15.0; 3.3-68.3), high blood pressure (4.5; 1.9-11.6) and ingestion of alcohol greater than or equal to 80 g/day in comparison with abstemious patients adjusted for the effect of high blood pressure (2.5; 1.1-5.7). An association was also observed with serum cholesterol levels greater than or equal to 250 mg/dl (6.46 mmol/l) (3.3; 1.2-8.8, in comparison with cholesterol less than 200 mg/dl). No association was found with the cigarette smoking (1.2; 0.7-2.3). CONCLUSIONS: The results observed for high blood pressure and the ingestion of alcohol regardless of the same are of importance in primary prevention due to being modifiable risk factors. The association with family history of stroke and auricular fibrillation reinforce the needs for primary prevention measures in these subpopulations while having had a stroke or a transitory ischemic attack is the characteristic with the most risk reinforcing the need for secondary prevention measures which have found to be effective. The controls presented abnormally low cholesterol levels that do not reflect those of the population from which they originate, thus existing the possibility that the association observed is spurious.  相似文献   

20.
1. Debate exists as to the nature of antidepressant-induced antinociception. It is unclear whether antidepressants are inherently antinociceptive, are able to potentiate opioid antinociception or both. We have used the acetic acid induced abdominal constriction assay in mice to investigate antidepressant-induced antinociception. 2. All the antidepressants tested (s.c.) produced dose-dependent protection against acetic acid-induced abdominal constriction. Similarly, morphine and aspirin were also effective antinociceptive agents in this nociceptive assay. 3. Opioid antagonists, naloxone (0.5 mg kg(-1), s.c.) and naltrindole (1 mg kg(-1), s.c.), shifted the dose-response relationships to the right for each of the antidepressant agents (dothiepin, amitriptyline, sibutramine, (+)-oxaprotiline and paroxetine). In this context the naloxone dose-ratios were 1.95, 3.90, 2.32, 4.50 and 2.65, with naltrindole dose-ratios of 4.36, 17.00, 4.28, 11.48 and 2.65 were obtained, respectively. Naloxone also shifted the morphine dose-response relationship to the right, by a factor of 2.62, whilst naltrindole had no effect upon morphine antinociception. Aspirin antinociception remained unaffected by both opioid antagonists. 4. The enkephalin catabolism inhibitor acetorphan, by itself, produced no activity in this test at a dose of 10 mg kg(-1) (s.c.). However, at higher doses, acetorphan produced a linear dose-response relationship against acetic acid-induced abdominal constriction. 5. When acetorphan was administered before either the antidepressants or morphine, there was a clear potentiation of the antidepressant- or morphine-induced antinociception. However, acetorphan had no effect on aspirin antinociception. 6. Since neither of the opioid antagonists were able to attenuate, nor was acetorphan able to potentiate, aspirin antinociception, we concluded that the mechanism of antidepressant-induced antinociception is different from that of the non-steroidal anti-inflammatory drugs. 7. These data are consistent with the view that antidepressants may induce endogenous opioid peptide release, as shown by the acetorphan study. In this context, the ability of naltrindole to displace the antidepressant dose-response relationship to the right without affecting morphine antinociception, implicates the delta-opioid receptor and endogenous opioid peptides in antidepressant-induced antinociception.  相似文献   

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