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1.
Heliyon ; 9(7): e17896, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37483812

RESUMO

A top-notch travel experience is vital for boosting a destination's competitiveness. Outbound travel notes of online travel agency capture tourists' experiences and emotions during their journeys, providing valuable insights for understanding tourist consumption behavior and improving tourism service policies. This study analyzes 1,012 travel blogs of Chinese tourists visiting Malaysia using grounded theory methodology. A dual-factor theoretical model is developed through open coding, spindle coding, and selective coding, illustrating the attention allocation problem of outbound tourists in their travel experiences. The study's hygiene factors comprise basic features, management aspects, and transportation components, while motivational factors include cultural elements, resource considerations, emotional factors, media influences, and commercial aspects. Research findings indicate that outbound tourists prioritize motivational factors, such as interpersonal service attributes and inherent emotional components. These factors play a crucial role in stimulating travel motivation and crafting memorable experiences. Moreover, hygiene factors, like infrastructure and security conditions, also impact tourists' experiences and are crucial for reducing dissatisfaction among outbound travelers. These results provide fresh perspectives on the factors influencing outbound tourists' experiences and their focal points during trips. The findings have significant implications for public sectors and industry professionals in tourism. By addressing the motivating and hygiene factors important to outbound tourists, they can enhance and fine-tune tourism service policies, ultimately increasing destination competitiveness. Measures such as improving infrastructure, raising service quality, and amplifying cultural experiences at the destination can all contribute to better travel experiences for tourists.

2.
Front Endocrinol (Lausanne) ; 14: 1137406, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37265701

RESUMO

Objective: Despite the fact that some evidence suggests that the administration of 17ß-estradiol plus norethisterone acetate influences glucose and insulin metabolism in women, these findings are still contradictory. Thus, we aimed to examine the impact of the co-administration of 17ß-estradiol and norethisterone acetate on glycated haemoglobin (HbA1c), fasting glucose, insulin and C-peptide concentrations in females by means of a systematic review and meta-analysis of randomized controlled trials (RCTs). Methods: We searched four databases (PubMed/MEDLINE, Scopus, Embase, and Web of Science) using specific keywords and word combinations. The random-effects model (DerSimonian and Laird model) was employed to compute the weighted mean difference (WMD) and 95% confidence intervals (CIs) for the variations from baseline of HbA1c, fasting glucose, insulin, and C-peptide concentrations. Results: In total, 14 RCTs were entered into the quantitative synthesis. The combined administration of 17ß-estradiol and norethisterone acetate decreased HbA1c (WMD: -0.65%, 95% CI: -1.15 to -0.15; P=0.011), fasting glucose (WMD: -11.05 mg/dL, 95% CI: -16.6 to -5.5; P<0.001) and insulin (WMD: -1.35 mIU/L, 95% CI: -2.20 to -0.50; P=0.001) levels. C-peptide concentrations' declined only in females diagnosed with overweight/obesity or diabetes. Conclusion: Evidence to date points out that the administration of 17ß-estradiol and norethisterone acetate has a positive impact on glucose metabolism in women by reducing fasting glucose, HbA1c, and insulin values. Future studies need to confirm the potential benefits of this drug combination in the prevention and/or management of cardiometabolic disorders.


Assuntos
Glicemia , Glucose , Feminino , Humanos , Glucose/metabolismo , Acetato de Noretindrona , Glicemia/metabolismo , Hemoglobinas Glicadas , Peptídeo C , Ensaios Clínicos Controlados Aleatórios como Assunto , Insulina/metabolismo , Estradiol
3.
Front Endocrinol (Lausanne) ; 13: 955687, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36034453

RESUMO

Doege-Potter syndrome is a rare paraneoplastic syndrome characterized by non-islet cell tumor hypoglycemia secondary to a solitary fibrous tumor. Doege-Potter syndrome always presents with recurrent fasting hypoglycemia, which can occasionally be life-threatening. The best choice of treatment for Doege-Potter syndrome and solitary fibrous tumor is complete resection. However, when it is unfeasible, local-regional treatment can be used as a palliative therapy. Herein, we report a case of a 46-year-old man with Doege-Potter syndrome that occurred secondary to the liver and pancreatic metastatic solitary fibrous tumors. After he received six rounds of targeting-intratumoral-lactic-acidosis transcatheter-arterial-chemoembolization (TILA-TACE) treatment in our hospital, his hypoglycemia was clinically cured, and the liver metastatic tumor was well controlled. We suggest that TILA-TACE can be considered when curative resection is unfeasible for metastatic liver solitary fibrous tumors to help a patient obtain further surgery opportunities.


Assuntos
Acidose , Neoplasias Gastrointestinais , Hipoglicemia , Neoplasias de Tecidos Moles , Tumores Fibrosos Solitários , Anormalidades Congênitas , Humanos , Rim/anormalidades , Nefropatias/congênito , Fígado , Masculino , Pessoa de Meia-Idade , Anormalidades Urogenitais
4.
Mol Med ; 22: 800-808, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27878211

RESUMO

Glucagon-like peptide 1 (GLP-1) can promote islet ß-cell replication and function, and mesenchymal stem cells (MSCs) can inhibit T cell autoimmunity. This study aimed at testing the dynamic distribution of infused human MSCs and therapeutic effect of combined MSCs and Liraglutide, a long-acting GLP-1 analogue, on preserving ß-cell function in severe non-obese diabetic (NOD) mice. We found that infused MSCs accumulated in the pancreas at 4 weeks post infusion, which was not affected by Liraglutide treatment. Liraglutide significantly enhanced the function of MSCs to preserve islet ß-cells by reducing glucose level at 30 minutes post glucose challenge and increasing the contents and secretion of insulin by islet ß-cells in severe diabetic NOD mice. Infusion with MSCs significantly reduced insulitis scores, but increased the frequency of splenic Tregs, accompanied by reducing the levels of plasma IFN-γ and TNF-α and elevating the levels of plasma IL-10 and transforming growth factor-ß1 (TGF-ß1) in NOD mice. Although Liraglutide mitigated MSC-mediated changes in the frequency of Tregs and the levels of plasma IL-10, Liraglutide significantly increased the levels of plasma TGF-ß1 in severe diabetic NOD mice. Therefore, our findings suggest that Liraglutide may enhance the therapeutic efficacy of MSCs in treatment of severe type 1 diabetes.

5.
Diabetes Care ; 35(7): 1413-9, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22723579

RESUMO

OBJECTIVE: To determine if autologous nonmyeloablative hematopoietic stem cell transplantation (AHSCT) was beneficial for type 1 diabetic adolescents with diabetic ketoacidosis (DKA) at diagnosis. RESEARCH DESIGN AND METHODS: We enrolled 28 patients with type 1 diabetes, aged 14-30 years, in a prospective AHSCT phase II clinical trial. HSCs were harvested from the peripheral blood after pretreatment consisting of a combination of cyclophosphamide and antithymocyte globulin. Changes in the exogenous insulin requirement were observed and serum levels of HbA(1c), C-peptide, and anti-glutamic acid decarboxylase antibody were measured before and after the AHSCT. RESULTS: After transplantation, complete remission (CR), defined as insulin independence, was observed in 15 of 28 patients (53.6%) over a mean period of 19.3 months during a follow-up ranging from 4 to 42 months. The non-DKA patients achieved a greater CR rate than the DKA patients (70.6% in non-DKA vs. 27.3% in DKA, P = 0.051). In the non-DKA group, the levels of fasting C-peptide, peak value during oral glucose tolerance test (C(max)), and area under C-peptide release curve during oral glucose tolerance test were enhanced significantly 1 month after transplantation and remained high during the 24-month follow-up (all P < 0.05). In the DKA group, significant elevation of fasting C-peptide levels and C(max) levels was observed only at 18 and 6 months, respectively. There was no mortality. CONCLUSIONS: We have performed AHSCT in 28 patients with type 1 diabetes. The data show AHSCT to be an effective long-term treatment for insulin dependence that achieved a greater efficacy in patients without DKA at diagnosis.


Assuntos
Diabetes Mellitus Tipo 1/terapia , Cetoacidose Diabética/terapia , Transplante de Células-Tronco Hematopoéticas , Adolescente , Adulto , Glicemia/metabolismo , Peptídeo C/sangue , Feminino , Teste de Tolerância a Glucose , Glutamato Descarboxilase/imunologia , Humanos , Insulina/administração & dosagem , Masculino , Estudos Prospectivos , Indução de Remissão , Transplante Autólogo
6.
J Clin Endocrinol Metab ; 97(5): 1729-36, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22419704

RESUMO

CONTEXT: Autologous hematopoietic stem cell transplantation (AHSCT) has the potential to induce clinical remission in patients with newly diagnosed type 1 diabetes. OBJECTIVE: The objective of the study was to examine the impact of AHSCT on lymphocytes and pancreatic ß-cell function. DESIGN: This was a nonrandomized, open-label prospective study. PATIENTS AND INTERVENTIONS: Thirteen patients with new onset of type 1 diabetes, 10 of them with diabetic ketoacidosis, were subjected to AHSCT with cryopreserved CD34(+) progenitor cells and followed up for 31-54 months. MAIN OUTCOME MEASURES: The numbers of different subsets of lymphocytes and the levels of serum cytokines, islet antibodies, C-peptide, and plasma glycosylated hemoglobin were longitudinally measured. RESULTS: The numbers of different subsets of lymphocytes, except for CD8(+) T cells, in the patients before AHSCT were significantly lower than those in controls. However, all lymphocytes gradually recovered after AHSCT, accompanied by decreased levels of serum autoantibodies, IL-1, IL-17, and TNF-α. After AHSCT, 11 of 13 patients required significantly reduced doses of insulin for adequate glycemic control, accompanied by reduced levels of glycosylated hemoglobin but increased C-peptide concentrations. Three patients achieved exogenous insulin independence for 7-54 months. The survival of remaining ß-cells was associated positively with the preexisting ß-cell function but negatively with preexisting autoantibodies (P < 0.05). The numbers of infused CD34(+) cells were positively correlated with the concentrations of serum IL-10, IL-4, TGF-ß, and fasting C-peptide but negatively correlated with the levels of serum TNF-α and insulin doses after AHSCT (P < 0.05). CONCLUSION: AHSCT modulated lymphocytes and preserved ß-cell function in Chinese patients with new onset of type 1 diabetes and diabetic ketoacidosis.


Assuntos
Diabetes Mellitus Tipo 1/cirurgia , Transplante de Células-Tronco Hematopoéticas , Células Secretoras de Insulina/fisiologia , Adolescente , Povo Asiático , Glicemia/metabolismo , Criança , Diabetes Mellitus Tipo 1/sangue , Diabetes Mellitus Tipo 1/fisiopatologia , Feminino , Humanos , Insulina/sangue , Masculino , Estudos Prospectivos , Transplante Autólogo , Resultado do Tratamento , Adulto Jovem
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