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1.
JAMA Netw Open ; 3(3): e200618, 2020 03 02.
Artigo em Inglês | MEDLINE | ID: mdl-32150271

RESUMO

Importance: Despite advances in cancer treatment and cancer-related outcomes, disparities in cancer mortality remain. Lower rates of cancer prevention screening and consequent delays in diagnosis may exacerbate these disparities. Better understanding of the association between area-level social determinants of health and cancer screening may be helpful to increase screening rates. Objective: To examine the association between area deprivation, rurality, and screening for breast, cervical, and colorectal cancer in patients from an integrated health care delivery system in 3 US Midwest states (Minnesota, Iowa, and Wisconsin). Design, Setting, and Participants: In this cross-sectional study of adults receiving primary care at 75 primary care practices in Minnesota, Iowa, and Wisconsin, rates of recommended breast, cervical, and colorectal cancer screening completion were ascertained using electronic health records between July 1, 2016, and June 30, 2017. The area deprivation index (ADI) is a composite measure of social determinants of health composed of 17 US Census indicators and was calculated for all census block groups in Minnesota, Iowa, and Wisconsin (11 230 census block groups). Rurality was defined at the zip code level. Using multivariable logistic regression, this study examined the association between the ADI, rurality, and completion of cancer screening after adjusting for age, Charlson Comorbidity Index, race, and sex (for colorectal cancer only). Main Outcomes and Measures: Completion of recommended breast, cervical, and colorectal cancer screening. Results: The study cohorts were composed of 78 302 patients eligible for breast cancer screening (mean [SD] age, 61.8 [7.1] years), 126 731 patients eligible for cervical cancer screening (mean [SD] age, 42.6 [13.2] years), and 145 550 patients eligible for colorectal cancer screening (mean [SD] age, 62.4 [7.0] years; 52.9% [77 048 of 145 550] female). The odds of completing recommended screening were decreased for individuals living in the most deprived (highest ADI) census block group quintile compared with the least deprived (lowest ADI) quintile: the odds ratios were 0.51 (95% CI, 0.46-0.57) for breast cancer, 0.58 (95% CI, 0.54-0.62) for cervical cancer, and 0.57 (95% CI, 0.53-0.61) for colorectal cancer. Individuals living in rural areas compared with urban areas also had lower rates of cancer screening: the odds ratios were 0.76 (95% CI, 0.72-0.79) for breast cancer, 0.81 (95% CI, 0.79-0.83) for cervical cancer, and 0.93 (95% CI, 0.91-0.96) for colorectal cancer. Conclusions and Relevance: Individuals living in areas of greater deprivation and rurality had lower rates of recommended cancer screening, signaling the need for effective intervention strategies that may include improved community partnerships and patient engagement to enhance access to screening in highest-risk populations.


Assuntos
Neoplasias da Mama/diagnóstico , Neoplasias Colorretais/diagnóstico , Detecção Precoce de Câncer/estatística & dados numéricos , Características de Residência , Determinantes Sociais da Saúde , Neoplasias do Colo do Útero/diagnóstico , Adulto , Idoso , Estudos Transversais , Prestação Integrada de Cuidados de Saúde , Feminino , Disparidades em Assistência à Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Meio-Oeste dos Estados Unidos , Utilização de Procedimentos e Técnicas , Fatores Socioeconômicos , Adulto Jovem
2.
Math Biosci Eng ; 16(4): 2927-2941, 2019 04 10.
Artigo em Inglês | MEDLINE | ID: mdl-31137243

RESUMO

This study shows the effects of magnetic field and copper nanoparticles on the flow of tangent hyperbolic fluid (blood) through a ciliated tube (fallopian tube). The present study will be very helpful for those patients who are facing blood clotting in fallopian tube that may cause for infertility or cancer. The nanoparticles and magnetic field are very helpful to break the clots in blood flowing in fallopian tube. Since blood flows in fallopian tube due to ciliary movement, therefore medicines containing copper nanoparticles and magnetic field with radiation therapy help to improve the patient. Ciliary movement has a particular pattern of motion i.e., metachronal wavy motion which helps to fluid flow. For the forced convective MHD flow of tangent hyperbolic nano-fluid, momentum and energy equations are solved by the small Reynolds' number approximation and Adomian decomposition method by constructing the recursive relation of ADM and solved by software "MATHEMATICA". The effects of parameters such as nanoparticle volume fraction, Hartmann number, entropy generation and Bejan's number have been discussed through graphs plotted in software "MATHEMATICA". It is found that blood flow is accelerated and heat transfer enhancement is maximum in the presence of nano particles, also magnetic effects accelerates the blood flow and help to enhance the heat transfer whereas the presence of porous medium increases the fluid's velocity and reduce the transfer of heat through fluid flow.


Assuntos
Cílios/fisiologia , Tubas Uterinas/fisiologia , Hidrodinâmica , Cobre , Fenômenos Eletromagnéticos , Doenças das Tubas Uterinas/terapia , Tubas Uterinas/irrigação sanguínea , Feminino , Hemodinâmica , Temperatura Alta/uso terapêutico , Humanos , Magnetoterapia/métodos , Conceitos Matemáticos , Nanopartículas Metálicas , Modelos Biológicos , Trombose/terapia
3.
J Biol Regul Homeost Agents ; 32(3): 489-495, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29921373

RESUMO

Tetramethylpyrazine (TMP) is a biologically active ingredient, which is isolated from a popularChinese medicinal plant. It has been used effectively to treat ischemic heart problems, cerebrovascular and thrombotic vascular diseases. This study was designed to evaluate the effect of TMP on calciumsensing receptors in pulmonary artery smooth muscle in chickens. For this purpose forty day-old chicks were distributed into five groups: the control group, the hypoxia group (kept under low Oxygen treatment), and TMP groups (kept under low Oxygen treatment along with treatment of different concentrations of TMP). The pulmonary artery smooth muscle cells were also cultured on 6-well plates in high glucose culture medium and divided into the same five groups. We used in vivo and in vitro study models by applying immunohistochemistry, RT-qPCR assay and Western blotting analysis. Our results showed that pre-incubation with hypoxia markedly stimulated the activation of calcium-sensing receptor (CaSR) in pulmonary artery smooth muscle cells (PASMCs). The TMP decreased the mRNA and protein levels of CaSR. Treatment with TMP clearly inhibited the activation of all CaSR in a dose-dependent manner. Our data demonstrated that TMP can down-regulate the expression of CaSR. Therefore, these findings provide a new target to treat pulmonary arterial hypertension (PAH) under hypoxic conditions.


Assuntos
Proteínas Aviárias/biossíntese , Regulação da Expressão Gênica/efeitos dos fármacos , Músculo Liso Vascular/metabolismo , Miócitos de Músculo Liso/metabolismo , Artéria Pulmonar/metabolismo , Pirazinas/farmacologia , Receptores de Detecção de Cálcio/biossíntese , Animais , Hipóxia Celular/efeitos dos fármacos , Galinhas , Músculo Liso Vascular/patologia , Miócitos de Músculo Liso/patologia , Artéria Pulmonar/patologia
4.
J Clin Diagn Res ; 9(4): ZC42-6, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26023642

RESUMO

AIM: To determine and compare the antimicrobial efficacy of ten commercially available herbal dentifrices against specific strains of oral microflora using a standard diffusion method at full strength and 1:1 dilution at 24 h. MATERIALS AND METHODS: The standard strains of Streptococcus. mutans (ATCC 21293), Streptococcus sangius (MTCC 442), Actinomyces viscosus (ATCC 3268), Staphylococcus aureus (ATCC 2592), Streptococcus pyogenes (MTCC 442) and Candida albicans (ATCC 183) were obtained. Antimicrobial efficacy of the dentifrices was tested in triplicate, at full strength and 1:1 dilution with the sterile water using a standard diffusion method for 24 h at 37°C. The antimicrobial efficacy was tested by observing the zones of inhibition in millimeters surrounding disk containing the dentifrice. Mean standard deviation and standard error of mean of the inhibitory zones was calculated for each herbal dentifrice. p<0.05 was considered statistically significant. RESULTS: Danth Kanthi (DK) was the most effective against all the microorganisms producing larger zones of inhibition at 24 h (F.S - 40±1.5; 1:1 dilution - 40±2.71). Amar Premium (AP) also produced larger zones of inhibition against all microorganisms except S. aureus. Of all the dentifrices, least zones of inhibitions i.e., around 5 mm was observed against S. aureus by Amar Premium (AP) and Dabur Babool (DB) at 24 h. CONCLUSION: Based on the results of the present study, it can be concluded that all herbal dentifrices exhibited antimicrobial activity against the selected oral microorganisms, with DK being the most effective. Hence, it can be inferred that herbal dentifrices can also be recommended like the conventional formulations.

5.
Allergy ; 65(5): 606-15, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-19845575

RESUMO

BACKGROUND: Epidemiological studies of diet and asthma have focused on relations with intakes of individual nutrients and foods and evidence has been conflicting. Few studies have examined associations with dietary patterns. METHODS: We carried out a population-based case-control study of asthma in adults aged between 16 and 50 in South London, UK. Information about usual diet was obtained by food frequency questionnaire and we used principal components analysis to define five dietary patterns in controls. We used logistic and linear regression, controlling for confounders, to relate these patterns to asthma, asthma severity, rhinitis and chronic bronchitis in 599 cases and 854 controls. RESULTS: Overall, there was weak evidence that a 'vegetarian' dietary pattern was positively associated with asthma [adjusted odds ratio comparing top vs bottom quintile of pattern score 1.43 (95% CI: 0.93-2.20), P trend 0.075], and a 'traditional' pattern (meat and vegetables) was negatively associated [OR 0.68 (0.45-1.03), P trend 0.071]. These associations were stronger amongst nonsupplement users (P trend 0.030 and 0.001, respectively), and the association with the 'vegetarian' pattern was stronger amongst whites (P trend 0.008). No associations were observed with asthma severity. A 'prudent' dietary pattern (wholemeal bread, fish and vegetables) was positively associated with chronic bronchitis [OR 2.61 (1.13-6.05), P trend 0.025], especially amongst nonsupplement users (P trend 0.002). CONCLUSIONS: Overall there were no clear relations between dietary patterns and adult asthma; associations in nonsupplement users and whites require confirmation. The finding for chronic bronchitis was unexpected and also requires replication.


Assuntos
Asma/epidemiologia , Asma/etiologia , Dieta/efeitos adversos , Adolescente , Adulto , Bronquite Crônica/epidemiologia , Bronquite Crônica/etiologia , Estudos de Casos e Controles , Suplementos Nutricionais/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise de Componente Principal , Inquéritos e Questionários , Reino Unido/epidemiologia , Adulto Jovem
6.
Allergy ; 63(7): 865-71, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18588552

RESUMO

BACKGROUND: There is evidence that selenium levels are relatively low in Europe and may be falling. Low levels of selenium or low activity of some of the enzymes dependent on selenium have been associated with asthma. METHODS: The GA(2)LEN network has organized a multicentre case-control study in Europe to assess the relation of plasma selenium to asthma. The network compared 569 cases in 14 European centres with a diagnosis of asthma and reporting asthma symptoms in the last 12 months with 576 controls from the same centres with no diagnosis of asthma and no asthmatic symptoms in the last 12 months. RESULTS: All cases and controls were selected from the same population defined by age and place of residence. Mean plasma selenium concentrations among the controls ranged from 116.3 microg/l in Palermo to 67.7 microg/l in Vienna and 56.1 microg/l among the children in Oslo. Random effects meta-analysis of the results from the centres showed no overall association between asthma and plasma selenium [odds ratio (OR)/10 microg/l increase in plasma selenium: 1.04; 95% confidence interval (CI): 0.89-1.21] though there was a significantly protective effect in Lodz (OR: 0.48; 95% CI: 0.29-0.78) and a marginally significant adverse effect in Amsterdam (OR: 1.68; 95% CI: 0.98-2.90) and Ghent (OR: 1.35; 95% CI: 1.03-1.77). CONCLUSION: This study does not support a role for selenium in protection against asthma, but effect modification and confounding cannot be ruled out.


Assuntos
Asma/sangue , Asma/epidemiologia , Selênio/sangue , Adolescente , Adulto , Estudos de Casos e Controles , Criança , Intervalos de Confiança , Fatores de Confusão Epidemiológicos , Suplementos Nutricionais , Europa (Continente)/epidemiologia , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Necessidades Nutricionais , Razão de Chances , Prevalência , Risco , Índice de Gravidade de Doença , Fumar
7.
Am J Respir Crit Care Med ; 164(10 Pt 1): 1823-8, 2001 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-11734430

RESUMO

A protective role for dietary antioxidants in asthma has been proposed. However, epidemiological evidence to implicate antioxidant vitamins is weak, and data on the role of flavonoid-rich foods and antioxidant trace elements are lacking. We carried out a population-based case-control study in South London, UK, to investigate whether asthma is less common and less severe in adults who consume more dietary antioxidants. Participants were aged 16-50 yr and registered with 40 general practices. Asthma was defined by positive responses to a standard screening questionnaire in 1996, and complete information about usual diet was obtained by food frequency questionnaire from 607 cases and 864 controls in 1997. After controlling for potential confounding factors and total energy intake, apple consumption was negatively associated with asthma (odds ratio [OR] per increase in frequency group 0.89 [95% confidence interval [CI]: 0.82 to 0.97]; p = 0.006). Intake of selenium was also negatively associated with asthma (OR per quintile increase 0.84 [0.75 to 0.94]; p = 0.002). Red wine intake was negatively associated with asthma severity. The associations between apple and red wine consumption and asthma may indicate a protective effect of flavonoids. The findings for dietary selenium could have implications for health policy in Britain where intake has been declining.


Assuntos
Antioxidantes/farmacologia , Asma/epidemiologia , Asma/prevenção & controle , Dieta , Adolescente , Adulto , Asma/classificação , Viés , Estudos de Casos e Controles , Fatores de Confusão Epidemiológicos , Inquéritos sobre Dietas , Ingestão de Energia , Metabolismo Energético , Feminino , Humanos , Londres/epidemiologia , Masculino , Malus , Pessoa de Meia-Idade , Política Nutricional , Vigilância da População , Fatores de Risco , Selênio/farmacologia , Índice de Gravidade de Doença , Inquéritos e Questionários , Vinho
8.
Ann Surg Oncol ; 2(5): 457-61, 1995 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-7496843

RESUMO

BACKGROUND: Transfusions of autologous deposited blood have continued to grow since the 1980s. Together with the growth in the deposit of autologous blood, issues such as appropriateness of indications, reimbursement, cost effectiveness, etc., have emerged and require addressing. Also, the patient's concerns about safety of the blood supply must be taken into account. METHODS: We conducted a 20-week study to determine the collection and transfusion/wastage of autologous blood and the need to transfuse additional allogeneic units of packed red blood cells. The disposition of every autologous unit was followed until its disposal. RESULTS: One hundred fifty-seven patients deposited 260 units of autologous blood. Of these, 144 units (55.4%) were transfused whereas 44.6% were discarded. In addition, 25 or 157 patients (15.9%) received an additional 58 units of allogeneic blood. CONCLUSION: These data demonstrate that there are surgical procedures where autologous blood is drawn unnecessarily whereas others could afford a higher number of autologous blood deposits. Physicians may be pressured by patients into ordering autologous blood deposits, to allay fear of patients about safety of the blood supply. It is important that health care professionals undergo periodic education to be able to address patient's apprehension about safety of the blood supply.


Assuntos
Coleta de Amostras Sanguíneas , Transfusão de Sangue Autóloga/estatística & dados numéricos , Neoplasias/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Revisão da Utilização de Recursos de Saúde
9.
Am J Clin Nutr ; 46(5): 804-11, 1987 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-2823593

RESUMO

This study evaluates acute effects of red kidney bean consumption on postprandial glucose and insulin responses in six healthy young men. Comparisons were made among three mixed-food breakfast meals comprised predominantly of either red kidney beans, bran cereal, or white bread. These meals provided equivalent levels of digestible carbohydrate, protein, and fat. The bean and bran meals contained equivalent levels of fiber while the white-bread meal contained a lower level. The postprandial glucose and insulin responses to the three meals were similar and responses also were similar after a standard whole-wheat-bread meal 4 h later. There appeared to be a reciprocal relationship between glucose and insulin responses after the lunch meal. This would influence interpretation of data regarding second-meal response.


Assuntos
Glicemia/análise , Fibras na Dieta/farmacologia , Alimentos , Insulina/sangue , Adulto , Pão , Grão Comestível , Fabaceae , Humanos , Masculino , Concentração Osmolar , Plantas Medicinais
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