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2.
Noncoding RNA Res ; 9(3): 695-703, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38577021

RESUMO

AKT2 is crucial for cancer cells' invasion, metastasis, and survival. It is a possible downstream gene target of cancer glycolysis-related microRNAs. The study investigated the role of miRNA-4716-3p, rs2304186, and the AKT2 gene in blood cancer pathogenesis. RT-qPCR was used to analyze AKT2 gene mRNA and miRNA-4716-3p expression in 200 blood cancer samples and 200 healthy controls. Furthermore, Tetra-ARMS PCR was used to examine the rs2304186 AKT2 SNP in 300 patients and 290 control samples. miRNA-4716-3p was shown to be significantly downregulated (p = 0.0294), whereas mRNA expression of the AKT2 gene was found to be significantly upregulated (p = 0.0034) in blood cancer patients compared to healthy individuals. miRNA-4716-3p downregulation (p = 0.0466) was more pronounced, while AKT2 upregulation was non-significant (p = 0.1661) in untreated patients compared to chemotherapy-treated patients. Blood cancer risk was significantly associated with the rs2304186 GT genotype (p = 0.0432), TT genotype (p = 0.0502), and mutant allele (T) frequency (p = 0.0008). Polymorphism rs2304186 was associated with an increased risk of blood cancer in dominant (p = 0.0011), recessive (p = 0.0502), and additive (p = 0.0008) genetic models. The results suggested that the rs2304186 and the deregulated expression of miRNA-4716-3p and AKT2 gene at the mRNA level may significantly increase the incidence of blood cancer, particularly in the Pakistani population. Therefore, these may function as suitable biomarkers for blood cancer diagnosis and prognosis. Additional, larger-scale investigations may be required to affirm these results.

3.
J Pharm Biomed Anal ; 244: 116121, 2024 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-38581932

RESUMO

Natural approach became a high demand for the prevention and treatment of such diseases for their proven safety and efficacy. This study is aimed to perform comparative phytochemical analysis of white pitaya (Hylocereus undatus) peel, pulp and seed extracts via determination of total flavonoid content, phenolic content, and antioxidant capacity, coupled with HPLC-ESI/MS-MS analysis. Further, we evaluated the synergistic cytotoxic potential with Cisplatin against cervical cancer cells with investigation of underlying mechanism. The highest content of phenolics and antioxidants were found in both seed and peel extracts. The HPLC-ESI/MS-MS revealed identification of flavonoids, phenolic acids, anthocyanin glycosides, lignans, stilbenes, and coumarins. The cytotoxicity effects were evaluated by MTT assay against prostate, breast and cervical (HeLa) and Vero cell lines. The seed and peel extracts showed remarkable cytotoxic effect against all tested cell lines. Moreover, the selectivity index confirmed high selectivity of pitaya extracts to cancer cells and safety on normal cells. The combined therapy with Cisplatin effectively enhanced its efficacy and optimized the treatment outcomes, through the apoptotic ability of pitaya extracts in HeLa cells, as evaluated by flow cytometry. Besides, RT-PCR and western blotting analysis showed downregulation of Bcl-2 and overexpression of P53, BAX among HeLa cells treated with pitaya extracts, which eventually activated apoptosis process. Thus, pitaya extract could be used as adjuvant therapy with cisplatin for treatment of cervical cancer. Furthermore, in-vivo extensive studies on the seed and peel extracts, and their compounds are recommended to gain more clarification about the required dose, and side effects.


Assuntos
Apoptose , Cactaceae , Cisplatino , Sinergismo Farmacológico , Frutas , Extratos Vegetais , Espectrometria de Massas por Ionização por Electrospray , Espectrometria de Massas em Tandem , Neoplasias do Colo do Útero , Humanos , Neoplasias do Colo do Útero/tratamento farmacológico , Neoplasias do Colo do Útero/metabolismo , Frutas/química , Extratos Vegetais/farmacologia , Extratos Vegetais/química , Cromatografia Líquida de Alta Pressão/métodos , Células HeLa , Espectrometria de Massas por Ionização por Electrospray/métodos , Espectrometria de Massas em Tandem/métodos , Feminino , Animais , Cactaceae/química , Apoptose/efeitos dos fármacos , Cisplatino/farmacologia , Células Vero , Chlorocebus aethiops , Sementes/química , Antineoplásicos Fitogênicos/farmacologia , Flavonoides/farmacologia , Flavonoides/análise , Antioxidantes/farmacologia , Fenóis/farmacologia , Fenóis/análise , Metabolômica/métodos
4.
J Am Coll Health ; : 1-7, 2024 Jan 16.
Artigo em Inglês | MEDLINE | ID: mdl-38227916

RESUMO

OBJECTIVE: This study examined the relationship between use patterns of a popular e-cigarette brand using nicotine salts, JUUL, and symptoms of nicotine dependence in a college cohort. PARTICIPANTS: Data for this study came from a prospective cohort of undergraduate students at a large Midwestern university from 2018 to 2019. METHODS: Among participants who had ever tried a JUUL (N = 411), univariate and multivariable logistic regression were used to test the associations between use frequency (past 30-day use) and quantity (time to finish a pod) and nicotine dependence at follow up. RESULTS: In the multivariable models, both frequency of use and quantity of use were associated with subsequent nicotine dependence, based on most indicators of dependence. CONCLUSIONS: As salt-based nicotine is now present in the most popular e-cigarette brands used by young people, such findings inform our contemporary understanding of e-cigarettes' addictive potential and can help inform campus-based interventions.

5.
Eur Rev Med Pharmacol Sci ; 28(1): 39-48, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38235896

RESUMO

OBJECTIVE: The aim of the study was to assess the disinfection efficacy, bond integrity, and nano hardness of caries-affected dentin (CAD) surface bonded to resin cement when disinfected with chlorhexidine (CHX), Methylene blue activated by Photodynamic therapy (MB-PDT), chitosan, silver diamine fluoride (SDF), chitosan activated by PDT, and SDF-diode laser against S. mutans. MATERIALS AND METHODS: A total of 60 human mandibular molars were extracted non-traumatically and gathered using ICDAS criteria. The dentin surface was prepared, leaving CAD to receive a disinfection procedure. After inoculation with S. mutans, the CAD samples were divided into six groups and disinfected with various disinfectants (n = 10) CHX, MB-PDT, chitosan, chitosan-PDT, SDF, and SDF+ diode laser. Survival rates of S. mutans were analyzed following the restoration of samples with resin cement via the etch and rinse method to assess SBS. Also, nano hardness was analyzed. Statistical analysis was performed by using the ANOVA and the Tukey multiple test (p<0.05). The Kruskal-Wallis test was used to evaluate the change in survival rate. RESULTS: Related to the survival rates, the SDF+ diode laser displayed the highest reduction in S. mutans levels and chitosan presented the lowest level of disinfection. The intergroup comparison revealed that CHX and chitosan-PDT displayed comparable outcomes of S. mutans survival rate to that of SDF+ diode laser (p>0.05). Likewise, MB-PDT and SDF displayed a comparable survival rate of S. mutans to Chitosan disinfection (p>0.05). Considering SBS and nano hardness, the highest SBS and NH were exhibited by the SDF+ diode laser, and the lowest SBS and NH values were exhibited by MB-PDT. The intragroup comparison revealed that CAD specimens disinfected with Chitosan-PDT showed comparable SBS and NH values to the SDF+ diode laser (p>0.05). CHX, chitosan, and SDF exhibited bond values and NH comparable to MB-PDT (p<0.05). CONCLUSIONS: Synergistic use of Silver diamine fluoride with diode laser and chitosan activated by PDT can be used as an alternative to CHX for controlling S. mutans growth, promoting enhanced bond efficacy and nano hardness for bonding resin cement to the caries-affected dentin.


Assuntos
Quitosana , Fotoquimioterapia , Compostos de Amônio Quaternário , Compostos de Prata , Humanos , Azul de Metileno , Dentina , Desinfecção , Adesivos , Cimentos de Resina , Suscetibilidade à Cárie Dentária , Clorexidina/farmacologia , Clorexidina/uso terapêutico , Teste de Materiais , Fármacos Fotossensibilizantes/farmacologia , Fármacos Fotossensibilizantes/uso terapêutico , Fluoretos Tópicos
6.
Addiction ; 119(3): 464-475, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37964431

RESUMO

BACKGROUND AND AIMS: Oral nicotine pouches (ONPs) probably offer reduced harm compared with cigarettes, but independent data concerning their misuse liability are lacking. We compared nicotine delivery and craving relief from ONPs with different nicotine concentrations to cigarettes. DESIGN: This was a single-blind, three-visit (≥ 48-hour washout), randomized-cross-over study. Participants were encouraged to complete all study visits in less than 1 month. SETTING: The study took place in Rural/Appalachian Ohio. PARTICIPANTS: Participants comprised 30 adults who smoke cigarettes. Participants (meanage = 34.5) were 60% men and 90% White. INTERVENTION: Participants who were ≥ 12-hour tobacco-abstinent used: (1) a 3-mg nicotine concentration ONP, (2) a 6-mg nicotine concentration ONP and (3) usual brand cigarette in separate visits. ONPs (wintergreen Zyn) were used for 30 minutes; cigarettes were puffed every 30 sec for 5 minutes. MEASUREMENTS: Plasma nicotine and self-reported craving were assessed at t = 0, 5, 15, 30, 60 and 90 minutes. The primary outcome was plasma nicotine concentration at t = 30 minutes. A secondary outcome was craving relief at t = 5 minutes. FINDINGS: At t = 30, mean [95% confidence interval (CI)] plasma nicotine was 9.5 ng/ml (95% CI = 7.1, 11.9 ng/ml) for the 3 mg nicotine ONP, 17.5 ng/ml (95% CI = 13.7, 21.3) for the 6 mg nicotine ONP and 11.4 ng/ml (95% CI = 9.2, 13.6 ng/ml) for the cigarette. Mean plasma nicotine at t = 30 minutes differed between the 3- and 6-mg nicotine ONPs (P = 0.001) and between the 6-mg nicotine ONP and cigarette (P = 0.002). Mean (95% CI) craving at t = 5 minutes was lower for the cigarette (mean = 1.00, 95% CI = 0.61, 1.39) than either the 3 mg (mean = 2.25, 95% CI = 1.68, 2.82; P < 0.0001) or 6 mg nicotine (mean = 2.19, 95% CI = 1.60, 2.79; P < 0.0001) ONP. CONCLUSIONS: Among adult smokers, using 6-mg nicotine concentration oral nicotine pouches (ONPs) was associated with greater plasma nicotine delivery at 30 minutes than 3-mg ONPs or cigarettes, but neither ONP relieved craving symptoms at 5 minutes as strongly as a cigarette. Accelerating the speed of nicotine delivery in ONPs might increase their misuse liability relative to cigarettes.


Assuntos
Fumar Cigarros , Sistemas Eletrônicos de Liberação de Nicotina , Abandono do Hábito de Fumar , Produtos do Tabaco , Adulto , Masculino , Humanos , Feminino , Nicotina , Estudos Cross-Over , Método Simples-Cego
7.
Eur Rev Med Pharmacol Sci ; 27(20): 10112-10125, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37916381

RESUMO

OBJECTIVE: There is a need to treat cancer cells with safe and natural nanoparticles to avoid the side effects of chemotherapeutic agents. Chamomile is considered a safe, natural plant with anticancer activity. We synthesize simple, inexpensive, and eco-friendly silver nanoparticles (SNs) using Chamomile (CHM) to tune their anticancer properties. MATERIALS AND METHODS: SN-CHM was synthesized by reducing 1 mM silver nitrate aqueous solution in 100 mL with the aqueous ethanolic flower extract of CHM (18 mg/mL, w/v). The reaction proceeded overnight at 600 rpm and 28°C. SN-CHM was characterized for their % yield, average diameter, charge, morphology, and silver release. Moreover, SN-CHM was investigated for its antioxidant and anticancer activities at 200 µg/mL and 5 mg/ mL, respectively. RESULTS: A 59.12% yield and a uniform SN-CHM size of 115 ± 3.1 nm with a ζ-potential of -27.67 ± (-3.92) mv were observed. The UV-visible absorption showed shifts from 379.5 to 383.5 nm for CHM and SN-CHM, respectively. Moreover, Ag+ was ultimately released from SN-CHM after 5 h. Fourier Transform Infrared Spectroscopy (FT-IR) showed characteristic absorption peaks of CHM and produced SN-CHM. Furthermore, SN-CHM showed moderate antioxidant activity. SN-CHM inhibited the % viability of SW620 and HT-29 cell lines at 20 µM. SN-CHM may also greatly upregulate the apoptotic gene BAX while considerably downregulating the anti-apoptotic genes BCL2 and BCL-Xl. CONCLUSIONS: CHM can be a safe soft drink, especially when conjugated with Ag ions as anticancer NPs. SN-CHM is considered potent anticancer activity against SW620, and HT-29 cell lines.


Assuntos
Neoplasias Colorretais , Matricaria , Nanopartículas Metálicas , Humanos , Substâncias Redutoras/farmacologia , Nanopartículas Metálicas/química , Espectroscopia de Infravermelho com Transformada de Fourier , Prata/farmacologia , Morte Celular , Antioxidantes/farmacologia , Extratos Vegetais/farmacologia , Extratos Vegetais/química , Neoplasias Colorretais/tratamento farmacológico , Antibacterianos/farmacologia
8.
PLoS One ; 18(10): e0293597, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37903103

RESUMO

BACKGROUND: Oral nicotine pouches (ONPs) are novel products, gaining popularity and marketed as "tobacco-free" alternatives to cigarettes and smokeless tobacco (SLT), but their public health impact is unknown. This study qualitatively examined ONP appeal and perceptions among cigarette smokers and SLT users from Ohio Appalachia. METHODS: In 2022, we conducted 10 virtual focus groups with smokers (n = 19) and smokeless tobacco users (n = 18) from Appalachia Ohio aged ≥21 to examine perceptions of risks and benefits, substitutability for cigarettes and SLT, and ONP marketing. We transcribed focus groups verbatim, thematically coded transcripts, and analyzed coded data for prominent themes. RESULTS: Participants perceived ONPs to have similar or less risk than cigarettes/SLT but prominently discussed gastrointestinal and cardiovascular risks. Addiction risk was thought to be comparable to cigarettes/SLT, citing "nicotine is nicotine." Participants viewed ONPs to be situational rather than complete substitutes for cigarettes/SLT, viewing them as "cleaner," more socially acceptable, and discrete. Despite appealing features of ONP marketing, participants surmised ads would appeal to youth, new users, tobacco users seeking to cut down/quit, or to "high class," "white-collar" demographics. CONCLUSIONS: Participants' perceptions of ONPs and their marketing suggest ONPs are more likely to be used as situational versus complete substitutes for cigarettes and SLT. While situational substitution could exacerbate disparities in Appalachia by facilitating more frequent tobacco/nicotine use, complete substitution could reduce disparities. Research is needed to understand how perceptions, the appeal of ONP marketing, and novel product features translate to patterns of use to understand ONPs' potential impact.


Assuntos
Sistemas Eletrônicos de Liberação de Nicotina , Produtos do Tabaco , Tabaco sem Fumaça , Adolescente , Humanos , Nicotina , Fumantes , Ohio , Marketing , Região dos Apalaches
9.
J Chem Neuroanat ; 132: 102323, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37543285

RESUMO

The hypothalamic brain cell types that produce estradiol from testosterone remain unclear. Aromatase inhibition affects ventromedial hypothalamic nucleus (VMN) glucose-stimulatory nitric oxide (NO) and glucose-inhibitory γ-aminobutyric acid (GABA) transmission during insulin (INS)-induced hypoglycemia (IIH). Pure GABA and NO nerve cell samples acquired by laser-catapult-microdissection from consecutive rostro-caudal segments of the VMN were analyzed by Western blot to investigate whether regional subpopulations of each cell type contain machinery for neuro-estradiol synthesis. Astrocyte endozepinergic signaling governs brain steroidogenesis. Pharmacological tools were used here to determine if the glio-peptide octadecaneuropeptide (ODN) controls aromatase expression in GABA and NO neurons during eu- and/or hypoglycemia. Intracerebroventricular administration of the ODN G-protein coupled-receptor antagonist cyclo(1-8)[DLeu5]OP (LV-1075) decreased (male) or enhanced (female) VMN GABAergic neuron aromatase expression, but increased or reduced this profile in nitrergic neurons in a region-specific manner in each sex. IIH suppressed aromatase levels in GABA neurons located in the middle segment of the male VMN or distributed throughout this nucleus in the female. This inhibitory response was altered by the ODN isoactive surrogate octapeptide (OP) in female, but was refractory to OP in male. NO neuron aromatase protein in hypoglycemic male (middle and caudal VMN) and female (rostral and caudal VMN) rats, but was normalized in OP- plus INS-treated rats of both sexes. Results provide novel evidence that VMN glucose-regulatory neurons may produce neuro-estradiol, and that the astrocyte endozepine transmitter ODN may impose sex-specific control of baseline and/or hypoglycemic patterns of aromatase expression in distinct subsets of nitrergic and GABAergic neurons in this neural structure.


Assuntos
Glucose , Hipoglicemia , Núcleo Hipotalâmico Ventromedial , Animais , Feminino , Masculino , Ratos , Aromatase/metabolismo , Estradiol/farmacologia , Ácido gama-Aminobutírico/metabolismo , Glucose/metabolismo , Glicogênio/metabolismo , Glicogênio/farmacologia , Hipoglicemia/metabolismo , Hipoglicemiantes/farmacologia , Ratos Sprague-Dawley , Fatores de Transcrição , Núcleo Hipotalâmico Ventromedial/metabolismo , Fatores Sexuais
10.
Transl Behav Med ; 13(10): 784-793, 2023 09 28.
Artigo em Inglês | MEDLINE | ID: mdl-37582629

RESUMO

Alcohol consumption is prevalent in young adult women and linked with breast cancer risk. Research to inform interventions targeting alcohol consumption as a breast cancer prevention strategy is limited. We examined young women's awareness of alcohol use as a breast cancer risk factor, identified correlates of awareness, and determined how awareness and conceptual predictors relate to intentions to reduce drinking. Women aged 18-25 years who drank alcohol in the past month (N = 493) completed a cross-sectional survey. Measures captured sociodemographics, breast cancer risk factors, awareness of alcohol use as a breast cancer risk factor, intentions to reduce drinking, and conceptual predictors. Analyses examined correlates of awareness and associations between awareness, conceptual predictors, and intentions to reduce drinking. Awareness was low (28%) and intentions to reduce drinking were moderate (M = 2.60, SD = 0.73, range 1-4). In multivariable analyses, awareness was associated with greater worry about cancer, beliefs that there's not much one can do to reduce cancer risk and everything causes cancer, higher perceived breast cancer risk, and stronger beliefs that reducing drinking reduces breast cancer risk. Awareness was not associated with intentions to reduce drinking. Younger age, older age of alcohol initiation, negative attitudes towards alcohol, fewer friends consuming alcohol, and stronger self-efficacy were associated with intentions to reduce drinking. Few young women recognize alcohol consumption as a breast cancer risk factor. Researchers and policymakers can apply our findings to design new or refine existing interventions to optimize their impact on awareness and alcohol consumption in young women.


Alcohol use is common among young adult women and is linked to an increased risk of breast cancer later in life. This study aimed to identify factors linked to young women's awareness of alcohol as a breast cancer risk factor and factors linked to intentions to reduce drinking. We surveyed 493 women aged 18­25 who resided in Ohio and reported drinking alcohol in the past month. Only 28% of the women were aware that alcohol use increases breast cancer risk, and intentions to reduce drinking were moderate. Factors associated with awareness of alcohol use as a breast cancer risk factor included cancer worry, believing there's not much you can do to lower your risk of cancer, believing everything causes cancer, higher perceived risk of breast cancer, and stronger beliefs that drinking less reduces breast cancer risk. Factors linked to intentions to reduce drinking included younger age, older age at first drinking, more negative attitudes about alcohol, believing fewer friends drink, and higher confidence to reduce drinking. The findings can help researchers and policymakers create new interventions to educate young women about the link between alcohol consumption and breast cancer risk and reduce alcohol use as a breast cancer prevention strategy.


Assuntos
Consumo de Bebidas Alcoólicas , Neoplasias da Mama , Humanos , Feminino , Adulto Jovem , Adolescente , Adulto , Consumo de Bebidas Alcoólicas/prevenção & controle , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/prevenção & controle , Intenção , Estudos Transversais , Etanol , Fatores de Risco
11.
Artigo em Inglês | MEDLINE | ID: mdl-37444152

RESUMO

It is an assumption that physically active adults lead an overall healthy lifestyle. To examine this assumption, we administered a cross-sectional, web-based survey to a sample of young-to-middle-aged US adults between 18 and 49 who self-reported participation in at least one recreational sporting event in the past month. Logistic regressions were conducted to examine demographic characteristics associated with cancer risk and protective behaviors. Gender was represented equally (N = 938), and the average age was 32 years (SD: 8.4). Most participants reported >three days of moderate- to high-intensity physical activity (79%), but not meeting fruit and vegetable consumption guidelines (78%). Many reported current tobacco use (32%), binge drinking at least once in the past 30 days (62%), and suboptimal sun protection use (67%). Participation in lifestyle-related cancer risk and protective behaviors varied based on age, sex, education, routine doctor visits, perceived overall health, health-information-seeking behavior (how participants obtained health information), or team-based sport participation in regression models. Future interventions should be tailored to address varied cancer risk profiles among even physically active adults to encourage multiple healthy behavior changes.


Assuntos
Neoplasias , Pessoa de Meia-Idade , Adulto , Humanos , Estudos Transversais , Neoplasias/epidemiologia , Neoplasias/prevenção & controle , Estilo de Vida , Comportamentos Relacionados com a Saúde , Frutas
13.
Artigo em Inglês | MEDLINE | ID: mdl-37174256

RESUMO

The cancer incidence among adolescents and young adults (AYAs) has significantly increased in recent years, but there is limited information about the factors that influence the perceived cancer risk among AYAs. A cross-sectional, web-based survey of 281 physically active Black and White AYA women was administered to assess the influences of demographic characteristics, family history of cancer, cancer risk factor knowledge, and lifestyle-related risk and protective behaviors on perceived cancer risk. Linear regression analyses were performed in SAS version 9.4. Self-reported Black race (ß = -0.62, 95% CI: -1.07, -0.17) and routine doctor visits (ß = -0.62, 95% CI: -1.18, -0.07) were related to a lower perceived cancer risk. Family history of cancer (ß = 0.56, 95% CI: 0.13, 0.99), cancer risk factor knowledge (ß = 0.11, 95% CI: 0.03, 0.19), and current smoking status (ß = 0.80, 95% CI: 0.20, 1.40) were related to a higher perceived cancer risk. Perceptions of cancer risk varied among this sample of physically active, AYA women. Lower perceptions of cancer risk among Black AYA women demonstrate a need for culturally tailored cancer educational information that presents objective data on lifetime cancer risk. Reportedly higher perceptions of cancer risk among AYA smokers presents an ideal opportunity to promote smoking cessation interventions. Future interventions to address cancer risk perception profiles among physically active, AYA women should tailor approaches that are inclusive of these unique characteristics.


Assuntos
Neoplasias , Humanos , Feminino , Adulto Jovem , Adolescente , Estudos Transversais , Grupos Raciais , Estilo de Vida , Atenção à Saúde
14.
J Egypt Natl Canc Inst ; 35(1): 11, 2023 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-37121922

RESUMO

BACKGROUND: This study was performed to investigate the expression of different biomarkers in patients with hepatocellular carcinoma and its connection with detective biomarkers. To achieve this objective, seventy subjects were examined in this study, sub-grouped to forty HCC patients and thirty HCV-affected patients with matched thirty healthy individuals. The study involved several groups of participants who were matched based on their age and gender. METHODS: The expression pattern of biomarkers was monitored by quantitative polymerase chain reaction (qRT-PCR). Finally, we utilized a ROC curve to investigate the predictive accurateness of those distinct biomarkers as well as a traditional tumor marker, AFP, in detecting HCC cases. RESULTS: The baseline biomarker expression levels were markedly greater in HCC patients than in those affected by HCV or healthy subjects. We stated that the sensitivity and the specificity of the different biomarkers alone did not improve than that of AFP alone. When comparing AFP with different biomarkers, the diagnostic validity improves only when combining with CK-1. CONCLUSIONS: Overall, our results indicate that CK-1 mRNA expression could help as a noninvasive tumor biomarker for HCC prognosis and diagnosis when combining with AFP.


Assuntos
Carcinoma Hepatocelular , Hepatite C , Neoplasias Hepáticas , Humanos , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/genética , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/genética , alfa-Fetoproteínas/análise , alfa-Fetoproteínas/metabolismo , Egito , Biomarcadores , Biomarcadores Tumorais/genética , Curva ROC , Hepatite C/complicações
15.
Health Educ Res ; 38(4): 338-349, 2023 07 25.
Artigo em Inglês | MEDLINE | ID: mdl-36880171

RESUMO

Waterpipe tobacco smoking is a public health concern that poses many of the same health risks as cigarette smoking, especially among young adults-a subpopulation characterized by the highest prevalence of waterpipe tobacco smoking. Nevertheless, it remains understudied relative to other forms of tobacco use. We examined sociodemographic, behavioral and cognitive factors associated with young adults' motivation to quit waterpipe smoking using a theory-informed approach. We completed a secondary analysis of baseline data on waterpipe tobacco smoking beliefs and behavior collected from 349 US young adults aged 18-30 years. We analyzed sociodemographics, tobacco use and cessation behaviors and perceptions, and theory-related constructs associated with motivation to quit waterpipe tobacco smoking using linear regression. Overall, participants reported low motivation (mean = 2.68, SD = 1.56, scale range 1-7) and high self-efficacy (mean = 5.12, SD = 1.79) to quit waterpipe tobacco smoking. In multivariable analysis, prior quit attempts (ß = 1.10, P < 0.01), greater perceived risks of waterpipe tobacco smoking (ß = 0.42, P < 0.01) and increasingly negative attitudes toward waterpipe tobacco smoking (ß = 0.29, P < 0.01) were associated with higher motivation to quit. These findings highlight the importance of those factors as potential cessation determinants. These findings can help guide the development and refinement of interventions targeting young adult waterpipe tobacco smoking.


Assuntos
Fumar Cigarros , Abandono do Hábito de Fumar , Tabaco para Cachimbos de Água , Humanos , Adulto Jovem , Abandono do Hábito de Fumar/psicologia , Motivação , Comportamentos Relacionados com a Saúde
16.
Artigo em Inglês | MEDLINE | ID: mdl-36834078

RESUMO

BACKGROUND: Oral nicotine pouches (ONPs) are novel products that are marketed as "tobacco-free" alternatives to cigarettes and smokeless tobacco (ST). This study examined the effects of ONP packaging features on adult tobacco users' and non-users' product perceptions. MATERIALS AND METHODS: Adult tobacco users (cigarettes, ST, and dual cigarette/ST) and non-users (total N = 301) viewed ONP pack images in a 4 × 3 × 2 between-subject experiment testing the effects of the displayed flavor (cool mint, coffee, dark frost, and smooth), nicotine concentration (none displayed on the package, 3 mg, and 6 mg), and addiction warning label (yes or no). The outcomes were perceived substitutability of ONPs for cigarettes and ST and perceived risks. We modeled the effects of tobacco user status and the experimental factors on these outcomes. RESULTS: All tobacco user groups perceived ONPs to be significantly less harmful and less addictive than non-users. There were significant effects of nicotine concentration on perceived risks. Compared to packages that did not display nicotine concentration, packages displaying 6 mg nicotine concentration produced significantly lower perceived harm (ß = -0.23, 95% CI -0.44, -0.02), perceived addictiveness (ß = -0.28, 95% CI -0.51, -0.05), risk appraisals of harm (ß = -0.50, 95% CI -0.88, -0.12) and risk appraisals of addictiveness (ß = -0.53, 95% CI -0.95, -0.11). CONCLUSIONS: The study findings demonstrate that the nicotine concentration displayed on ONP packaging can affect adults' perceptions of ONPs. Further research on the effects of ONP packaging features emphasizing nicotine (e.g., "tobacco free" nicotine claims) on tobacco users and non-users is needed to assess their potential public health impact.


Assuntos
Sistemas Eletrônicos de Liberação de Nicotina , Produtos do Tabaco , Tabaco sem Fumaça , Nicotina , Embalagem de Produtos , Nicotiana
17.
Int J Behav Med ; 30(2): 268-278, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35543861

RESUMO

BACKGROUND: Adherence to COVID-19 protective measures is lowest for young people and males. The current study investigated characteristics associated with adherence to COVID-19 protective measures among male youth during the early months of the pandemic. METHOD: The study used data from a prospective cohort study among male youth with baseline assessment in 2015/2016 and follow-up measurements in 2019 and summer 2020. Attrition-weighted multivariable ordinal logistic and log-binomial regression models were used to assess factors associated with adherence to overall and specific adherence measures, respectively. RESULTS: Among 571 male youth (mean age 18.5), overall adherence was higher for those who were older (OR: 1.15; 95% CI: 1.03-1.30), non-White (OR: 1.96; 95% CI: 1.20-3.32), and residing in an urban area (OR: 2.06; 95% CI: 1.46-3.01). Overall adherence was lower for those who had a history of being drunk (OR: 0.65; 95% CI: 0.42-0.99). For outdoor mask-wearing, adherence was higher for youth with attention-deficit disorder or attention-deficit/hyperactivity disorder (RR: 1.58; 95% CI: 1.16-1.97) and lower for youth who currently used tobacco products (RR: 0.42; 95% CI: 0.21-0.70). Before a statewide mask mandate was issued, non-White youth were more likely to report wearing masks in outdoor spaces than their non-Hispanic White peers (RR: 2.34; 95% CI: 1.75-3.23). CONCLUSION: The study identified demographic, psychosocial, and behavioral factors associated with adherence to COVID-19 protective behaviors among male youth. The findings illustrate characteristics that could be leveraged for targeted preventive efforts during the ongoing pandemic and future outbreaks in a low-compliance group.


Assuntos
COVID-19 , Masculino , Humanos , Adolescente , COVID-19/epidemiologia , COVID-19/prevenção & controle , SARS-CoV-2 , Estudos Prospectivos , Surtos de Doenças , Pandemias/prevenção & controle
18.
Saudi J Biol Sci ; 30(1): 103506, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36458098

RESUMO

The study in vivo assessed the effect of pinostrobin on the histology, immunohistochemistry, and biochemical parameters of thioacetamide (TAA) induced liver cirrhosis in Sprague Dawley rats. The rats were noticeably gavaged with two doses of pinostrobin (30 mg/kg and 60 mg/kg) with TAA and exhibited a substantial decrease in the liver index and hepatocyte propagation with much minor cell injury. These groups meaningfully down-regulated the proliferation of cellular nucleus antigen (PCNA) and alpha-smooth muscle actin (α-SMA). The liver homogenate displayed augmented antioxidant enzymes, superoxide dismutase (SOD) and catalase (CAT) activities escorted with reducing in malondialdehyde (MDA) level. The serum level of bilirubin, total protein, albumin, and liver enzymes (ALP, ALT, and AST) returned to normal and was similar to that of normal control and silymarin with TAA-treated groups. pinostrobin-fed groups also decreased the level of Tumor necrosis factor-alpha (TNF-α), Interleukin-6 (IL-6), and increased the level of Interleukin-10 (IL-10). Acute toxicity with a higher dose of 500 mg/kg of pinostrobin did not manifest any toxicological signs in rats. The hepatoprotective effect of pinostrobin could be due to potentially inhibited the progression of liver cirrhosis, down-regulation of PCNA and α-SMA proliferation, prevented oxidation of hepatocytes, improved SOD and CAT enzymes, condensed MDA, repairs of liver biomarkers, reduced cellular inflammation and modulation of inflammatory cytokines.

19.
Front Nutr ; 10: 1280209, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38299181

RESUMO

This study aims to investigate the production of natural flavor compounds through the utilization of Bacillus subtilis-fermented soybean meal extract and evaluate their biological potential. The experiment involved a comprehensive in vitro investigation to assess the capabilities and effects of the produced flavor compounds. The resulting flavor compounds were subjected to various in vitro tests to assess their properties, including cytotoxicity, antioxidant activity, anticancer potential, antiviral activity, and antimicrobial activity. To enhance the fermentation process, soybean meal extract was fortified with a combination of L-Lysine and L-Threonine. Gas chromatography-mass spectrometry (GC/MS) analysis was conducted on the fermented soybean meal using two strains of Bacillus subtilis, namely NRCH123 and NRCZ144. This analysis revealed the presence of various volatile compounds in all extracts, including Butylated hydroxytoluene. The fermented soybean extract with bacillus subtilis NRCZ144 (B2) fortified with a combination of 2.5% (w/w) L-Lysine and 2.5% w/w L-threonine (SLT2) exhibited a rich profile of flavor compounds, with Eucalyptol being identified as the predominant compound. The antioxidant activity of the SLT2 extract was found to be 72.04% at a concentration of 100 µg/mL, indicating significant antioxidant potential. Furthermore, when tested against the human liver cancer cell line HepG2, the extract demonstrated anticancer activity with an IC50 value of 2.26 µg/mL. The extract exhibited potent cytotoxicity, with an IC50 value of 1.02 µg/mL. Importantly, the SLT2 extract displayed strong antibacterial and antifungal activity, even at very low concentrations. The extract's antimicrobial properties indicate its potential for inhibiting the growth of bacteria and fungi.

20.
Georgian Med News ; (344): 72-76, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38236102

RESUMO

Tension impacts wound healing and scarring. Tissue stress reduces blood flow and promotes fibroblastic response in wound treatment. Botox injections reduce tension. A total of 18 male albino rats weighing 250-350 grams each got 1 IU of Botox and saline injected into a subcutaneous muscle in the center of each 1.5 CM two circles with 4.5 CM a gap between them. Group A seven days pre-operatively; group B, after wound incidence. The study compared Botox-treated wounds to those treated immediately after surgery. Group A animals were surgery-ready after 7 days, removed full-thickness skin. Group B got Botox and saline in separate cages following full-thickness skin excision. Each group had three equal subgroups. Each group had immunohistochemistry tests on days 3, 7, and 14. and histological test on day 14 only, Skin biopsies following euthanasia showed significant variations between A and B groups. On day three, the group A showed increase significantly MMP-9 expression than B group. On day 7, the group A displayed a significant increase CD31 expression, suggesting significant new blood vessel development than group B. On day 14, both groups showed strong MMP-9 and CD31 expression, demonstrated greater endothelial cell, and keratinocyte proliferation resulted in very well re-epithelialization. Botox injection before surgery improved wound healing and reduced fibrosis and scarring.


Assuntos
Toxinas Botulínicas Tipo A , Cicatriz , Masculino , Ratos , Animais , Cicatriz/tratamento farmacológico , Toxinas Botulínicas Tipo A/uso terapêutico , Metaloproteinase 9 da Matriz , Cicatrização , Pele
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