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1.
Am J Bot ; 111(4): e16311, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38571288

RESUMO

PREMISE: Previous work searching for sexual dimorphism has largely relied on the comparison of trait mean vectors between sexes in dioecious plants. Whether trait scaling (i.e., the ratio of proportional changes in covarying traits) differs between sexes, along with its functional significance, remains unclear. METHODS: We measured 10 vegetative traits pertaining to carbon, water, and nutrient economics across 337 individuals (157 males and 180 females) of the diocious species Eurya japonica during the fruiting season in eastern China. Piecewise structural equation modeling was employed to reveal the scaling relationships of multiple interacting traits, and multivariate analysis of (co)variance was conducted to test for intersexual differences. RESULTS: There was no sexual dimorphism in terms of trait mean vectors across the 10 vegetative traits in E. japonica. Moreover, most relationships for covarying trait pairs (17 out of 19) exhibited common scaling slopes between sexes. However, the scaling slopes for leaf phosphorus (P) vs. nitrogen (N) differed between sexes, with 5.6- and 3.0-fold increases of P coinciding with a 10-fold increase of N in male and female plants, respectively. CONCLUSIONS: The lower ratio of proportional changes in P vs. N for females likely reflects stronger P limitation for their vegetative growth, as they require greater P investments in fruiting. Therefore, P vs. N scaling can be a key avenue allowing for sex-specific strategic optimization under unequal reproductive requirements. This study uncovers a hidden aspect of secondary sex character in dioecious plants, and highlights the use of trait scaling to understand sex-defined economic strategies.


Assuntos
Nitrogênio , Fósforo , Folhas de Planta , Reprodução , Fósforo/metabolismo , Fósforo/análise , Nitrogênio/metabolismo , Folhas de Planta/fisiologia , Folhas de Planta/crescimento & desenvolvimento , China , Cyperaceae/fisiologia , Cyperaceae/crescimento & desenvolvimento
2.
J Cell Mol Med ; 28(6): e18115, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-38436544

RESUMO

Ovarian cancer is one of the most common gynaecological malignancies with poor prognosis and lack of effective treatment. The improvement of the situation of ovarian cancer urgently requires the exploration of its molecular mechanism to develop more effective molecular targeted drugs. In this study, the role of human ribosomal protein l35a (RPL35A) in ovarian cancer was explored in vitro and in vivo. Our data identified that RPL35A expression was abnormally elevated in ovarian cancer. Clinically, high expression of RPL35A predicted short survival and poor TNM staging in patients with ovarian cancer. Functionally, RPL35A knock down inhibited ovarian cancer cell proliferation and migration, enhanced apoptosis, while overexpression had the opposite effect. Mechanically, RPL35A promoted the direct binding of transcription factor YY1 to CTCF in ovarian cancer cells. Consistently, RPL35A regulated ovarian cancer progression depending on CTCF in vitro and in vivo. Furthermore, RPL35A affected the proliferation and apoptosis of ovarian cancer cells through PPAR signalling pathway. In conclusion, RPL35A drove ovarian cancer progression by promoting the binding of YY1 and CTCF promoter, and inhibiting this process may be an effective strategy for targeted therapy of this disease.


Assuntos
Neoplasias dos Genitais Femininos , Neoplasias Ovarianas , Proteínas Ribossômicas , Feminino , Humanos , Apoptose/genética , Proliferação de Células/genética , Neoplasias Ovarianas/genética , Proteínas Ribossômicas/genética , Proteínas Ribossômicas/metabolismo , Fator de Transcrição YY1/genética , Fator de Transcrição YY1/metabolismo , Fator de Ligação a CCCTC/genética
3.
Artigo em Inglês | MEDLINE | ID: mdl-38518154

RESUMO

Objective: To evaluate the effectiveness of percutaneous nephrolithotomy (PCNL) compared with open surgery for urinary stone removal. Methods: A total of 95 patients with urinary stones were screened for eligibility between October 2020 and December 2021. After excluding 5 patients who revoked their consent, 90 patients were randomized to receive either traditional open surgery (traditional group) or PCNL (PCNL group), with 45 patients in each group. In addition, the two groups received Shugan Qingre Tonglin decoction twice daily for 2 weeks. Outcome measures included intraoperative indexes, stone removal rate, postoperative healing, and quality of life. Results: PCNL resulted in significantly better intraoperative indexes (95% CI, 0.49-1.11; P < .001), lower creatinine concentration (95% CI, 0.59-1.61; P < .001), and higher glomerular filtration rate (95% CI, 2.43-2.91; P < .001) compared with traditional open surgery. Patients in the PCNL group had a significantly higher stone removal rate (95% CI, 1.09-2.51; P < .001) and a lower incidence of adverse events (95% CI, 0.69-1.87; P < .001) compared with those receiving traditional open surgery. Patients in the PCNL group had significantly higher quality of life (95% CI, 1.39-2.81; P < .001) and significantly higher maximum urinary flow rate (95% CI, 1.36-2.61; P < .001) than those in the traditional group at 1 month and 3 months after treatment. Conclusion: PCNL provides better postoperative renal function improvement, enhances the postoperative recovery of patients with urinary stones, and features manageable safety compared with traditional open surgery. The benefits of PCNL make it a promising technique for the clinical management of urinary stones. Its minimally invasive nature reduces patient discomfort, promotes faster recovery, and improves overall patient satisfaction. The superior outcomes of PCNL in terms of renal function improvement and postoperative recovery suggest that it is a viable alternative to traditional open surgery. Further research and clinical trials are warranted to validate these findings and establish PCNL as a widely adopted approach in the field of urology.

4.
Planta ; 257(6): 119, 2023 May 13.
Artigo em Inglês | MEDLINE | ID: mdl-37178342

RESUMO

MAIN CONCLUSION: Two UDP-glycosyltransferases from Panax vienamensis var. fuscidiscus involved in ocotillol-type ginsenoside MR2 (majonside-R2) biosynthesis were identified. PvfUGT1 and PvfUGT2 sequentially catalyzes 20S,24S-Protopanxatriol Oxide II and 20S,24R-Protopanxatriol Oxide I to pseudoginsenoside RT4/RT5 and RT4/RT5 to 20S, 24S-MR2/20S, 24S-MR2. Ocotilol type saponin MR2 (majonside-R2) is the main active component of Panax vietnamensis var. fuscidiscus (commonly known as 'jinping ginseng') and is well known for its diverse pharmacological activities. The use of MR2 in the pharmaceutical industry currently depends on its extraction from Panax species. Metabolic engineering provides an opportunity to produce high-value MR2 by expressing it in heterologous hosts. However, the metabolic pathways of MR2 remain enigmatic, and the two-step glycosylation involved in MR2 biosynthesis has not been reported. In this study, we used quantitative real-time PCR to investigate the regulation of the entire ginsenoside pathway by MeJA (methyl jasmonate), which facilitated our pathway elucidation. We found six candidate glycosyltransferases by comparing transcriptome analysis and network co-expression analysis. In addition, we identified two UGTs (PvfUGT1 and PvfUGT2) through in vitro enzymatic reactions involved in the biosynthesis of MR2 which were not reported in previous studies. Our results show that PvfUGT1 can transfer UDP-glucose to the C6-OH of 20S, 24S-protopanaxatriol oxide II and 20S, 24R-protopanaxatriol oxide I to form pseudoginsenoside RT4 and pseudoginsenoside RT5, respectively. PvfUGT2 can transfer UDP-xylose to pseudoginsenoside RT4 and pseudoginsenoside RT5 to form 20S, 24S-MR2 and 20S, 24S-MR2. Our study paves the way for elucidating the biosynthesis of MR2 and producing MR2 by synthetic biological methods.


Assuntos
Ginsenosídeos , Panax , Glicosiltransferases/genética , Glicosiltransferases/metabolismo , Difosfato de Uridina/metabolismo
5.
J Hazard Mater ; 441: 129867, 2023 01 05.
Artigo em Inglês | MEDLINE | ID: mdl-36115091

RESUMO

The role of phosphorus in metal oxide catalysts is still controversial. The precise tuning of the acidic and redox properties of metal oxide catalysts for the selective catalytic reduction in NOx using NH3 is also a great challenge. Herein, CeO2 catalysts with different degrees of phosphorylation were used to study the balance between the acidity and redox property by promoting and inhibiting effects of phosphorus. CeO2 catalysts phosphorylated with lower phosphorus content (5 wt%) exhibited superior NOx reduction performance with above 90% NOx conversion during 240-420 °C due to the balanced acidity and reducibility derived from the highest content of Brønsted acid sites on PO43- to adsorb NH3 and surface adsorbed oxygen species. Plenty of PO3- over CeO2 catalysts phosphorylated with the higher phosphorus content (≥ 10 wt%) significantly disrupted the balance between the acidity and the redox property due to the reduced acid/redox sites, which resulted in the less active NOx species. The mechanism of different structural phosphorus species (PO43- and PO3-) in promoting or inhibiting the NOx reduction over CeO2 catalysts was revealed. This work provides a novel method for qualitative and quantitative study of the relationship between acidity/redox property and activity of catalysts for NOx reduction.


Assuntos
Cério , Fósforo , Ácidos , Amônia/química , Catálise , Cério/química , Oxirredução , Óxidos/química , Oxigênio
6.
Front Plant Sci ; 14: 1259347, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38239219

RESUMO

Bergenin is a typical carbon glycoside and the primary active ingredient in antitussive drugs widely prescribed for central cough inhibition in China. The bergenin extraction industry relies on the medicinal plant species Bergenia purpurascens and Ardisia japonica as their resources. However, the bergenin biosynthetic pathway in plants remains elusive. In this study, we functionally characterized a shikimate dehydrogenase (SDH), two O-methyltransferases (OMTs), and a C-glycosyltransferase (CGT) involved in bergenin synthesis through bioinformatics analysis, heterologous expression, and enzymatic characterization. We found that BpSDH2 catalyzes the two-step dehydrogenation process of shikimic acid to form gallic acid (GA). BpOMT1 and AjOMT1 facilitate the methylation reaction at the 4-OH position of GA, resulting in the formation of 4-O-methyl gallic acid (4-O-Me-GA). AjCGT1 transfers a glucose moiety to C-2 to generate 2-Glucosyl-4-O-methyl gallic acid (2-Glucosyl-4-O-Me-GA). Bergenin production ultimately occurs in acidic conditions or via dehydration catalyzed by plant dehydratases following a ring-closure reaction. This study for the first time uncovered the biosynthetic pathway of bergenin, paving the way to rational production of bergenin in cell factories via synthetic biology strategies.

7.
Asia Pac J Oncol Nurs ; 8(3): 314-321, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33850965

RESUMO

OBJECTIVE: This study aimed to investigate the current prevalence and determinants of psychological distress and the association of distress with general information, character strengths, medical coping, and social support in Chinese adolescents and young adults (AYAs) aged 15-39 years with cancer. METHODS: A multicenter survey was carried out. Eight hundred and nine patients completed the Chinese version of the National Comprehensive Cancer Network distress thermometer (DT), the three-dimensional inventory of character strengths, the medical coping modes questionnaire, and the Social Support Rating Scale. RESULTS: The current prevalence of psychological distress in Chinese AYAs with cancer was 83.4%. Binary logistic regression analysis showed that gender, age, educational level, marriage, monthly income, exercise intensity, cancer classifications, treatments, self-control, confrontation, avoidance, and subjective support were all associated with distress. AYA cancer patients who were female, younger, or divorced or had a lower monthly income, education level, or exercise intensity were more likely to have higher level of distress. Compared to AYAs with other cancer classifications, patients with digestive system malignancies, breast cancers, and head and neck malignancies had a higher prevalence of distress. Patients receiving chemotherapy or radiotherapy were more likely to be distressed. The higher the self-control, confrontation, avoidance, and subjective support scores were, the lower the prevalence of distress was among AYA cancer patients. CONCLUSIONS: The prevalence of psychological distress in AYA cancer patients was relatively high. Potential interventions targeting exercise intensity, character strengths, medical coping, and social support may decrease the prevalence of psychological distress in this patient population.

8.
Am J Phys Anthropol ; 175(4): 762-776, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33638171

RESUMO

OBJECTIVES: We undertook a more comprehensive analyses than our previous study (Yi et al., International Journal of Osteoarchaeology, 2018, 28, 636-644) at the Gaoshan site (~2500-2000 cal. BC) to expand our understanding of the different roles of rice and millets to human subsistence strategies, diachronic shift of human diets, diversity of human life histories and cultural influence (dental ablation) to human population. MATERIALS AND METHODS: Carbon and nitrogen isotopic analyses of human (ribs and long bones, n = 68) and animal (n = 15) bones as well as carbonized seeds from rice and millets (n = 8) were undertaken. Human bones were directly AMS-14 C dated. In addition, sequential sampling of 16 individuals with varied age and sex and cultural contexts for isotopic analysis was also conducted. RESULTS: The calibrated dating results (n = 27) indicate that there existed two periods of occupation at the site, ~2500-2200 BC and ~2200-1900 BC. Moderate high δ15 N values were found in the crops. Isotopic data from bone collagen suggest that the humans mainly relied on C3 -based animal protein and were supplemented by C4 -based foods. This isotopic pattern is also seen in pigs. Significant difference of human δ13 C values (Mann-Whitney U test, p < 0.05) between the two periods was observed. Compared to the bones, the isotopic data of human dentine serial sections show a much wider variability and higher δ13 C values. DISCUSSION: The crops (millets and rice) were probably manured. Human individuals subsisted on rice/millet agriculture and pigs in general. In combination with the radiocarbon dates, the increase of C3 (rice) consumption by the humans was found from the early (2500-2200 cal. BC) to late (2200-2000 cal. BC) periods, indicating the intensification of rice agriculture through time. However, four categories of human life histories during childhood are identified given different isotopic profiles of dentine sections, demonstrating that C3 (rice) and C4 (millets)-based foods played different roles in human lives. Even though, there were similar weaning practices among the human populations. It is surprising that human individuals with dental ablation, cultural characteristic in the Middle and Lower Yangtze River Valley, consumed more millets during childhood in the early period than those without dental ablation in the late period. Our study here provides novel insights into cultural dynamics and the interplay between rice and millets in rice-millet agricultural system during the Late Neolithic in Southwest China.


Assuntos
Milhetes , Oryza , Animais , Isótopos de Carbono/análise , China , Produtos Agrícolas , Dieta , História Antiga , Isótopos de Nitrogênio/análise , Suínos
9.
Curr Eye Res ; 46(1): 45-51, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-32478572

RESUMO

PURPOSE: To investigate the mechanism of the protective effects of blueberry anthocyanin extract (BAE) against oxidative stress and the roles of SIRT1 and NF-κB in the pathogenesis of diabetic cataracts. METHODS: Male SD rats were randomly divided into a control group (group A) and an experimental group. The rats in the experimental group were intraperitoneally injected with streptozotocin (STZ) (60 mg/kg). Rats with blood glucose levels ≥16.7 mmol/L were considered to have DM. The rats in the experimental group were subdivided into group B (distilled water by oral gavage: 10 ml/kg/day), group C (5% blueberry anthocyanin extract by oral gavage: 10 ml/kg/day), and group D (15% blueberry anthocyanin extract by oral gavage: 10 ml/kg/day), with 15 rats in each group. At the end of 8 weeks, some biochemical parameters, including the expression of SIRT1 and NF-κB by qRT-PCR and western blotting and the activity of SOD and GSH, were measured in lens epithelial cells (LECs). RESULTS: The lenses of the rats in the control group appeared transparent during the entire 8-week period. Four weeks following STZ injection, cataracts gradually progressed in the experimental rats. SIRT1 expression was upregulated in groups B, C and D compared to the control group. However, the expression of NF-κB decreased in the experimental groups with increasing doses of BAE (p < .05). Our study also showed that the activity of the SOD enzyme and GSH in the LECs of the rats in the experimental group increased with higher doses of BAE. CONCLUSIONS: The results indicated that BAE significantly delayed the progression of diabetic cataracts in rats. These effects may be due to the dose-dependent antioxidant activity of BAE, which is mediated by enhanced SOD and GSH activities, SIRT1 expression and reduced NF-κB expression. Abbreviations: SD rat: Sprague-Dawley rat; BAE: Blueberry anthocyanin extract; LECs: Lens epithelial cells; SOD: Superoxide dismutase; GSH: Glutathione; DM: Diabetes mellitus; SIRT1: Silent information regulator protein-1; STZ: Streptozotocin; PBS: Phosphate-buffered saline.


Assuntos
Antocianinas/farmacologia , Catarata/metabolismo , Diabetes Mellitus Experimental/metabolismo , Células Epiteliais/metabolismo , NF-kappa B/genética , Extratos Vegetais/farmacologia , Sirtuína 1/genética , Animais , Glicemia/metabolismo , Western Blotting , Mirtilos Azuis (Planta)/química , Catarata/patologia , Regulação da Expressão Gênica/fisiologia , Glutationa/metabolismo , Cristalino/citologia , Masculino , NF-kappa B/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Ratos , Ratos Sprague-Dawley , Reação em Cadeia da Polimerase em Tempo Real , Sirtuína 1/metabolismo , Estreptozocina , Superóxido Dismutase/metabolismo
10.
J Nurs Manag ; 29(2): 326-332, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32914508

RESUMO

AIMS: To explore the spiritual care competence among nurses in mainland China and determine its relationships with their self-efficacy and personal characteristics. BACKGROUNDS: Nurses' perception of competence in spiritual care has critical effects on their own practice. Having a view of the nurses' spiritual care competence would help nurse managers recognize the weakness of spiritual practice. METHODS: A descriptive cross-sectional study using online survey methods was carried out in 2,970 Chinese nurses. Spiritual care competence scale and General Self-Efficacy Scale were used to collect the data. RESULTS: The total score of spiritual care competence scale was 58.5 (16.05). The highest score on competence was for communication (3.48 (0.97)), and the lowest was referral to professionals (2.25 (0.93)). Positive correlation was found between spiritual care competence and self-efficacy (r = .490, p < .01). Results of multiple linear regression analysis showed that self-efficacy, whether or not trained, experience of caring terminal illness patients, working experiences and first degree were the five factors associated with spiritual care competence (F = 217.425, p < .001, R2  = 26.7%). CONCLUSIONS: Nurses showed different levels of competence in various dimensions of spiritual care. Their spiritual care competence was related to self-efficacy, whether or not received training, experience of caring terminal illness patients, working experiences and first degree of nursing education. IMPLICATIONS FOR NURSING MANAGEMENT: Nurse managers have to realize that it is imperative to enhance the nurses' competence to address the spiritual care needs of patients. Appropriate ways to enhance the nurses' spiritual care competence are needed so as to improve spiritual practices.


Assuntos
Enfermeiros Administradores , Terapias Espirituais , China , Estudos Transversais , Humanos , Espiritualidade , Inquéritos e Questionários
11.
Phytother Res ; 34(5): 1134-1141, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-31984561

RESUMO

Myocarditis is a common heart disease which lacks effective treatment till now. Baicalin possesses plenty of activities, including anti-inflammation. In this investigation, we attempted to investigate the influences of Baicalin on Lipopolysaccharide (LPS)-evoked H9c2 cells.Cells viability, apoptosis, and expressions of apoptosis-associated proteins were, respectively, measured utilizing CCK-8 assay, flow cytometry and western blot. The levels of IL-6 and TNF-α were detected through enzyme-linked immunosorbent assay, western blot and qRT-PCR. miR-21 expression was detected through qRT-PCR and was silenced using cell transfection. The expressions of NF-κB and PDCD4/JNK pathways related proteins were measured through western blot. We found that LPS stimulation induced cell apoptosis and upregulation of IL-6 and TNF-α. Baicalin treatment effectively suppressed LPS-induced inflammation and apoptosis. The NF-κB and PDCD4/JNK pathways were blocked by Baicalin. Additionally, the enhanced expression of miR-21 triggered by LPS was further elevated by Baicalin. Further study revealed that the inhibiting effects of Baicalin on LPS-evoked injury were largely attenuated by knockdown of miR-21. Moreover, the associated NF-κB and JNK pathways, which were suppressed by Baicalin treatment, were then activated by knockdown of miR-21. Our present study revealed that Baicalin alleviated LPS-evoked inflammatory injury via suppressing the NF-κB and PDCD4/JNK pathways through regulating miR-21 expression.


Assuntos
Anti-Inflamatórios não Esteroides/uso terapêutico , Flavonoides/uso terapêutico , Inflamação/tratamento farmacológico , Lipopolissacarídeos/efeitos adversos , MicroRNAs/metabolismo , Anti-Inflamatórios não Esteroides/farmacologia , Flavonoides/farmacologia , Humanos , Transfecção
12.
J Neuropsychiatry Clin Neurosci ; 31(4): 319-327, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31117905

RESUMO

OBJECTIVE: The authors examined the efficacy of valproate to reduce relapse to heavy drinking among veterans with alcohol use disorder (AUD) and neuropsychiatric comorbidities and whether antecedent traumatic brain injury (TBI) or posttraumatic stress disorder (PTSD) affected treatment response. METHODS: Participants were male veterans 18-60 years old with an AUD and no other substance use besides nicotine or cannabis. Sixty-two patients were randomly assigned to receive either valproate or naltrexone. Participants were evaluated at baseline and followed weekly for 24 weeks. All participants received standardized psychosocial interventions as well as treatment for coexistent psychiatric conditions. RESULTS: During the follow-up period, nine study subjects in the naltrexone group and 14 in the valproate group relapsed to heavy drinking, but the difference did not reach statistical significance. Participants with a history of moderate to severe TBI were more likely to relapse to heavy drinking compared with those with no TBI (hazard ratio=4.834, 95% CI=1.103-21.194, p=0.033). PTSD status did not significantly affect outcome. CONCLUSIONS: Intensive outpatient programs are efficacious alternatives to treat AUD in veterans, although the role of pharmacological treatment is not completely elucidated. Glutamatergic agents appear to be less effective than opiate antagonists to prevent relapse to heavy drinking and to increase cumulative abstinence. Future studies should examine novel pharmacological and nonpharmacological options.


Assuntos
Alcoolismo/tratamento farmacológico , Lesões Encefálicas Traumáticas/psicologia , GABAérgicos/uso terapêutico , Ácido Valproico/uso terapêutico , Veteranos/estatística & dados numéricos , Adulto , Dissuasores de Álcool/uso terapêutico , Comorbidade , Método Duplo-Cego , Humanos , Masculino , Pessoa de Meia-Idade , Naltrexona/uso terapêutico , Recidiva , Transtornos de Estresse Pós-Traumáticos , Estados Unidos , Veteranos/psicologia
13.
Support Care Cancer ; 27(9): 3403-3409, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30648209

RESUMO

PURPOSE: This study aimed to explore the associated factors of spiritual well-being among cancer patients and the relationship between spiritual well-being (SWB) and quality of life (QOL). METHODS: This cross-sectional study was conducted in 200 Chinese cancer patients in a tertiary cancer hospital. Functional Assessment of Cancer Therapy-General (FACT-G) and the Functional Assessment of Chronic Illness Therapy-Spiritual Well-being (FACIT-Sp) were used to measure SWB and QOL levels of participants. Multiple regression analyses were performed to determine the relationship between SWB and QOL. RESULTS: The mean score of QOL was 59.8 (SD 13.1) with a range of 27-106. The mean score of SWB was 24.4 (SD 6.5), with a range of 8-48. Hospitalization frequency was the only variable associated with SWB. In terms of the relationship between SWB and QOL, the meaning and peace subscales were significantly related to overall QOL. It was also observed that the meaning subscale was positively related to social/family well-being, emotional well-being, and functional well-being. The peace subscale was related to the physical well-being, social/family well-being, and functional well-being. Faith was negatively related to physical and emotional well-being, but it had a positive effect on functional well-being. CONCLUSIONS: Given that the meaning and peace subscales are related to a higher QOL level, it is important to find ways to improve these dimensions of spiritual well-being among cancer inpatients during treatment.


Assuntos
Neoplasias/psicologia , Qualidade de Vida/psicologia , Espiritualidade , Adolescente , Adulto , Idoso , Institutos de Câncer , Doença Crônica , Estudos Transversais , Feminino , Humanos , Masculino , Saúde Mental , Pessoa de Meia-Idade , Adulto Jovem
14.
Neural Regen Res ; 13(5): 915-922, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29863023

RESUMO

Large-scale epidemiological studies have found that hyperhomocysteinemia is a powerful, independent risk factor for Alzheimer's disease. Trillium tschonoskii maxim is a traditional Chinese medicine that is used to promote memory. However, scientific understanding of its mechanism of action is limited. This report studied the potential neuroprotective effects of Trillium tschonoskii maxim extract against homocysteine-induced cognitive deficits. Rats were intravenously injected with homocysteine (400 µg/kg) for 14 days to induce a model of Alzheimer's disease. These rats were then intragastrically treated with Trillium tschonoskii maxim extract (0.125 or 0.25 g/kg) for 7 consecutive days. Open field test and Morris water maze test were conducted to measure spontaneous activity and learning and memory abilities. Western blot assay was used to detect the levels of Tau protein and other factors involved in Tau phosphorylation in the hippocampus. Immunohistochemical staining was used to examine Tau protein in the hippocampus. Golgi staining was applied to measure hippocampal dendritic spines. Our results demonstrated that homocysteine produced learning and memory deficits and increased levels of Tau phosphorylation, and diminished the activity of catalytic protein phosphatase 2A. The total number of hippocampal dendritic spines was also decreased. Trillium tschonoskii maxim extract treatment reversed the homocysteine-induced changes. The above results suggest that Trillium tschonoskii maxim extract can lessen homocysteine-induced abnormal Tau phosphorylation and improve cognitive deterioration such as that present in Alzheimer's disease.

15.
Support Care Cancer ; 26(10): 3405-3412, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29663138

RESUMO

PURPOSE: Spiritual needs are important for many patients with life-limiting illnesses. Knowledge of spiritual needs is a first step to their fulfillment; however, such knowledge is lacking for patients with cancer in mainland China. This study evaluated spiritual needs among patients with cancer in China and analyzed their associations with demographic and clinical characteristics. METHODS: A descriptive, cross-sectional study was performed. A general information questionnaire and a Chinese version of the Spiritual Needs Scale were used to collect information about patients with cancer. A total of 200 participants were recruited, and 182 completed the survey. RESULTS: The overall average spiritual needs score was 3.15. Of five dimensions investigated, the highest and lowest scores were for "hope and peace" (mean = 3.31) and "relationship with transcendence" (mean = 2.96). Of specific needs, "to be accepted," "to take responsibility for my life," and "to alleviate my suffering" (means = 3.36-3.38) were valued as most important by participants. "To talk to someone," "to pray and participate in religious rituals and services," and "to feel God with me during my struggle against disease" (means = 2.71-2.91) were considered least important. Participants' spiritual needs differed significantly according to disease stage (p < 0.001), time since diagnosis (p = 0.002), and hospitalization frequency (p = 0.004). CONCLUSIONS: The spiritual needs of patients with cancer should receive more attention in China. Effective assessment tools and procedures should be established to evaluate the spiritual needs of patients and formulate appropriate interventions at an early stage.


Assuntos
Neoplasias/psicologia , Espiritualidade , China , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
16.
Arch Med Res ; 48(6): 506-512, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-29224910

RESUMO

AIMS: To explore the effect of salvianolic acid B (Sal B) on regulation of SIRT3/FOXO1 signaling pathway in rats with non-alcoholic steatohepatitis (NASH). METHODS: Sixty Sprague Dawley (SD) rats were randomly divided into control, model and treatment groups. After 12 weeks of successful model establishment with high fat diet, treatment group was given Sal B by intragastric administration. After 12 weeks of treatment, rats were sacrificed and livers were taken to test indicators such as liver index, TG, TC, ALT, AST, reactive oxygen species (ROS) by DCFH-DA probe, SOD2 activity by WST-8 test. mRNA and protein expression of SIRT3, SOD2, catalase were detected by real time PCR and western blot, respectively. The acetylation level of FOXO1 and SOD2 was detected by immuno-precipitation (IP). RESULT: Liver index, ALT, AST, TG, TC, and ROS of model group were higher than those of control and treatment groups, which the difference was statistically significant (p <0.01). SOD2 activity of model group was lower than that of control and treatment groups. In treatment group, HE staining and electron microscopy showed hepatic tissue pathological change and mitochondrial structure damage alleviate. mRNA and protein expression of SIRT3, SOD2, catalase were lower in model group and the difference was statistically significant (p <0.05), which was opposite in the acetylation level of FOXO1 and SOD2 by IP. CONCLUSION: Sal B can decrease oxidative stress reaction by regulating SIRT3/FOXO1 signaling pathway and play a therapeutic role in the treatment of NASH in rats.


Assuntos
Benzofuranos/farmacologia , Medicamentos de Ervas Chinesas/farmacologia , Proteínas do Tecido Nervoso/metabolismo , Hepatopatia Gordurosa não Alcoólica/tratamento farmacológico , Transdução de Sinais/efeitos dos fármacos , Sirtuínas/metabolismo , Animais , Dieta Hiperlipídica , Modelos Animais de Doenças , Fígado/metabolismo , Fígado/patologia , Masculino , Hepatopatia Gordurosa não Alcoólica/metabolismo , Hepatopatia Gordurosa não Alcoólica/patologia , Estresse Oxidativo/efeitos dos fármacos , Ratos , Ratos Sprague-Dawley , Espécies Reativas de Oxigênio/metabolismo , Superóxido Dismutase/metabolismo
17.
Asia Pac J Oncol Nurs ; 3(3): 226-232, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27981165

RESUMO

Factors affecting the health outcomes of cancer patients have gained extensive research attention considering the increasing number and prolonged longevity of cancer survivors. Breast cancer survivors experience physical, psychological, social, and spiritual challenges. This systematic literature review aims to present and discuss an overview of main issues concerning breast cancer survivors after treatment. Treatment-related symptoms as well as psychosocial and spiritual aspects of breast cancer survivors are evaluated. Moreover, the benefits of intervention for emotional, physical, social, and spiritual needs of the patient during the survivorship are investigated. This review also proposes avenues for future studies in this field and develops a new, integrated, and complete interpretation of findings on the holistic well-being of women with breast cancer. Thus, this study provides clinicians with a more comprehensive source of information compared with individual studies on symptom experiences.

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