Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 48
Filtrar
Más filtros

Bases de datos
País/Región como asunto
Tipo del documento
País de afiliación
Intervalo de año de publicación
1.
Matern Child Nutr ; 20(1): e13561, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37680000

RESUMEN

To promote maternal and infant health, there is a need to optimise the dietary pattern of pregnant women to reduce perinatal depression. This prospective cohort study was conducted from June 2020 to February 2022, 300 women from a medical center were interviewed during late pregnancy and at 4-6 weeks postpartum. Dietary patterns were derived by factor analysis using a semiquantitative food frequency questionnaire. Symptomatic depression was defined using the Edinburgh Postpartum Depression Scale (EPDS, ranged 0-30). Their dairy, vegetable and fruit intakes were below the Taiwanese recommendations for pregnant women. Symptomatic depression (EPDS ≥10) affected 31.3% in the third trimester and 35.7% postpartum. Pre- and post-EPDS scores were positively correlated (r = 0.386, p < 0.001). Approximately 55% of those depressed before delivery were also depressed postpartum. For late pregnancy, four dietary patterns were identified ('Good oil', 'Vegetables and fruits', 'Omnivorous' and 'Refined-grain and organ meats'). Dietary patterns were classified according to quartiles (Q). Higher omnivorous pattern scores reduced the risk of depression. For prenatal depression, with Q1 as a reference, the risk was reduced by 38% for Q2, 43% for Q3 and 59% for Q4 (p for trend = 0.068). These findings became evident postpartum (reduced risk by 68% for Q2, 69% for Q3 and 70% for Q4 (p = 0.031; p for trend = 0.0032). The association between dietary patterns and depression encourages the routine nutritional management of pregnant women.


Asunto(s)
Depresión Posparto , Patrones Dietéticos , Embarazo , Femenino , Humanos , Estudios Prospectivos , Depresión/epidemiología , Periodo Posparto , Frutas , Verduras , Depresión Posparto/epidemiología , Dieta
2.
Environ Toxicol ; 36(3): 320-327, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33044769

RESUMEN

Ganoderma is one of the common medicinal mushrooms in traditional Chinese medicine. Previous researches have unveiled the multifaceted biological activity of Ganoderma extract. Ganoderma tsugae has been investigated the potential on curing prostate, colon, lung, epidermoid, breast and ovarian cancers, but not including endometrial cancer. Endometrial cancer is a gynecological malignant tumor with serious drug resistance problem in clinical cancer treatment. This study aimed to demonstrate the first study of Ganoderma on treating endometrial cancer. The Ganoderma tsugae ethanol extract (GTEE) could suppress the proliferation of endometrial cancer cells HEC-1-A, KLE, and AN3 CA. GTEE also induced G1/S phase arrest and mitochondria-mediated apoptosis in endometrial cancer cells. Furthermore, the Akt signaling pathway could be suppressed by GTEE. Therefore, our results suggest for the first time that GTEE has the potential to be an adjuvant therapeutic agent in the treatment of endometrial cancer.


Asunto(s)
Medicamentos Herbarios Chinos/farmacología , Neoplasias Endometriales/tratamiento farmacológico , Ganoderma , Apoptosis/efectos de los fármacos , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Medicamentos Herbarios Chinos/uso terapéutico , Femenino , Humanos , Medicina Tradicional China , Proteínas Proto-Oncogénicas c-akt/metabolismo , Transducción de Señal/efectos de los fármacos
3.
Cell Microbiol ; 21(10): e13085, 2019 10.
Artículo en Inglés | MEDLINE | ID: mdl-31290210

RESUMEN

Staphylococcus aureus is frequently isolated from patients with community-acquired pneumonia and acute respiratory distress syndrome (ARDS). ARDS is associated with staphylococcal phosphatidylinositol-specific phospholipase C (PI-PLC); however, the role of PI-PLC in the pathogenesis and progression of ARDS remains unknown. Here, we showed that recombinant staphylococcal PI-PLC possesses enzyme activity that causes shedding of glycosylphosphatidylinositol-anchored CD55 and CD59 from human umbilical vein endothelial cell surfaces and triggers cell lysis via complement activity. Intranasal infection with PI-PLC-positive S. aureus resulted in greater neutrophil infiltration and increased pulmonary oedema compared with a plc-isogenic mutant. Although indistinguishable proinflammatory genes were induced, the wild-type strain activated higher levels of C5a in lung tissue accompanied by elevated albumin instillation and increased lactate dehydrogenase release in bronchoalveolar lavage fluid compared with the plc- mutant. Following treatment with cobra venom factor to deplete complement, the wild-type strain with PI-PLC showed a reduced ability to trigger pulmonary permeability and tissue damage. PI-PLC-positive S. aureus induced the formation of membrane attack complex, mainly on type II pneumocytes, and reduced the level of CD55/CD59, indicating the importance of complement regulation in pulmonary injury. In conclusion, S. aureus PI-PLC sensitised tissue to complement activation leading to more severe tissue damage, increased pulmonary oedema, and ARDS progression.


Asunto(s)
Proteínas Bacterianas/metabolismo , Proteínas del Sistema Complemento/metabolismo , Fosfoinositido Fosfolipasa C/metabolismo , Edema Pulmonar/inmunología , Edema Pulmonar/microbiología , Síndrome de Dificultad Respiratoria/microbiología , Infecciones Estafilocócicas/inmunología , Staphylococcus aureus/enzimología , Células Epiteliales Alveolares/enzimología , Células Epiteliales Alveolares/inmunología , Células Epiteliales Alveolares/microbiología , Animales , Proteínas Bacterianas/genética , Antígenos CD55/inmunología , Antígenos CD59/inmunología , Citocinas/metabolismo , Glicosilfosfatidilinositoles/inmunología , Glicosilfosfatidilinositoles/metabolismo , Células Endoteliales de la Vena Umbilical Humana , Humanos , Ratones , Ratones Endogámicos BALB C , Fosfoinositido Fosfolipasa C/genética , Edema Pulmonar/metabolismo , Proteínas Recombinantes/genética , Proteínas Recombinantes/aislamiento & purificación , Proteínas Recombinantes/metabolismo , Síndrome de Dificultad Respiratoria/inmunología , Síndrome de Dificultad Respiratoria/metabolismo , Infecciones Estafilocócicas/metabolismo , Infecciones Estafilocócicas/microbiología , Staphylococcus aureus/genética , Staphylococcus aureus/metabolismo
4.
Medicine (Baltimore) ; 102(3): e32746, 2023 Jan 20.
Artículo en Inglés | MEDLINE | ID: mdl-36701726

RESUMEN

There are few stem cells in human peripheral blood (PB). Increasing the population and plasticity of stem cells in PB and applying it to regenerative medicine require suitable culture methods. In this study, leukocyte populations 250 mL of PB were collected using a blood separator before that were cultured in optimal cell culture medium for 4 to 7 days. After culturing, stemness characteristics were analyzed, and red blood cells were removed from the cultured cells. In our results, stemness markers of the leukocyte populations Sca-1+ CD45+, CD117+ CD45+, and very small embryonic-like stem cells CD34+ Lin- CD45- and CXCR4+ Lin- CD45- were significantly increased. Furthermore, the expression of stem cell genes OCT4 (POU5F1), NANOG, SOX2, and the self-renewal gene TERT was analyzed by quantitative real-time polymerase chain reaction in these cells, and it showed a significant increase. These cells could be candidates for multi-potential cells and were further induced using trans-differentiation culture methods. These cells showed multiple differentiation potentials for osteocytes, nerve cells, cardiomyocytes, and hepatocytes. These results indicate that appropriate culture methods can be applied to increase expression of pluripotent genes and plasticity. Leukocytes of human PB can be induced to trans-differentiate into pluripotent potential cells, which will be an important breakthrough in regenerative medicine.


Asunto(s)
Células Madre Embrionarias , Telomerasa , Humanos , Células Madre Embrionarias/metabolismo , Diferenciación Celular , Genes Homeobox , Antígenos CD34/metabolismo , Células Cultivadas , Leucocitos/metabolismo , Telomerasa/genética , Proteína Homeótica Nanog/genética , Proteína Homeótica Nanog/metabolismo , Factores de Transcripción SOXB1/genética
5.
Artículo en Inglés | MEDLINE | ID: mdl-23346199

RESUMEN

Triptolide (TPL) inhibits the proliferation of a variety of cancer cells and has been proposed as an effective anticancer agent. In this study, we demonstrate that TPL downregulates HER2 protein expression in oral, ovarian, and breast cancer cells. It suppresses HER2 protein expression in a dose- and time-dependent manner. Transrepression of HER2 promoter activity by TPL is also observed. The interacting site of TPL on the HER2 promoter region is located between -207 and -103 bps, which includes a putative binding site for the transcription factor NF-κB. Previous reports demonstrated that TPL suppresses NF-κB expression. We demonstrate that overexpression of NF-κB rescues TPL-mediated suppression of HER2 promoter activity and protein expression in NIH3T3 cells and ovarian cancer cells, respectively. In addition, TPL downregulates the activated (phosphorylated) forms of HER2, phosphoinositide-3 kinase (PI3K), and serine/threonine-specific protein kinase (Akt). TPL also inhibits tumor growth in a mouse model. Furthermore, TPL suppresses HER2 and Ki-67 expression in xenografted tumors based on an immunohistochemistry (IHC) assay. These findings suggest that TPL transrepresses HER2 and suppresses the downstream PI3K/Akt-signaling pathway. Our study reveals that TPL can inhibit tumor growth and thereby may serve as a potential chemotherapeutic agent.

6.
Reprod Biomed Online ; 22(2): 220-7, 2011 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-21233017

RESUMEN

Bioluminescence imaging (BLI) has been introduced for studies of ongoing biological processes but has never been applied for ovarian transplantation. Here, BLI was used as a novel approach to trace the survival of ovarian grafts. The ovarian donors were transgenic mice carrying FVB/N-Tg (PolII-luc) as a reporter gene, encoding luciferase to catalyse luciferin which results in visible light emission as bioluminescence. There were three groups of recipients: (i) group A: BALB/c mice without immunosuppressant treatment; (ii) group B: BALB/c mice receiving a cocktail immunosuppressant treatment; and (iii) group C: immunodeficient NOD-SCID mice without immunosuppression. Luciferin BLI was used to follow graft survival, and viable follicle numbers were counted as a measure of success. Bioluminescence intensity fluctuated but was consistent with the end-point counts of viable follicle numbers. Group A showed loss of viable follicles and bioluminescence disappeared as early as day 10 following ovarian engraftment, indicating strong immune rejection. Groups B and C showed graft survival and measurable bioluminescence for up to 30 days. In conclusion, BLI provided non-invasive longitudinal dynamic monitoring of ovarian grafts with excellent sensitivity and spatial resolution. This approach should prove valuable for research on ovarian transplantation.


Asunto(s)
Diagnóstico por Imagen/métodos , Rechazo de Injerto/patología , Proteínas Luminiscentes/análisis , Ovario/patología , Ovario/trasplante , Animales , Femenino , Supervivencia de Injerto/efectos de los fármacos , Inmunosupresores/farmacología , Mediciones Luminiscentes/métodos , Ratones , Ratones Endogámicos BALB C , Ratones Endogámicos NOD , Ratones SCID , Folículo Ovárico/efectos de los fármacos , Folículo Ovárico/patología , Ovario/efectos de los fármacos , Ovario/inmunología , Sensibilidad y Especificidad , Trasplante Homólogo
7.
J Cardiovasc Pharmacol ; 58(6): 589-601, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-22146403

RESUMEN

Changing intracellular pH (pHi) exerts considerable influence on many cellular functions. Different pHi regulators, such as the Na-H exchanger (NHE), Na/(Equation is included in full-text article.)symporter, and Cl/OH exchanger (CHE), have been identified in mature mammalian cells. The aims of the present study were to investigate the physiological mechanisms of pHi recovery and to further explore the effects of alcohol on the pHi in human umbilical cord blood CD34 stem cell-like cells (HUCB-CD34STs). HUCB-CD34STs were loaded with the pH-sensitive dye, 2',7'-bis(2-carboxethyl)-5(6)-carboxyfluorescein, to examine pHi. In isolated HUCB-CD34STs, we found that (1) the resting pHi is 7.03 ± 0.02; (2) 2 Na-dependent acid extruders and a Cl-dependent acid loading carrier exist and are functional; (3) alcohol functions in a concentration-dependent manner to reduce pHi and increase NHE activity, but it does not affect CHE activity; and (4) fomepizole, a specific alcohol dehydrogenase inhibitor, does not change the intracellular acidosis and NHE activity-induced by alcohol, whereas 3-amino-1, 2,4-trizole, a specific catalase inhibitor, entirely abolishes these effects. In conclusion, we demonstrate that 2 acid extruders and 1 acid loader (most likely NHE, NBC, and CHE, respectively) functionally existed in HUCB-CD34STs. Additionally, the intracellular acidosis is mainly caused by catalase-mediated alcohol metabolites, which provoke the activity of NHE.


Asunto(s)
Acidosis/inducido químicamente , Etanol/farmacología , Células Madre/efectos de los fármacos , Amitrol (Herbicida)/farmacología , Antígenos CD34/metabolismo , Antiportadores/metabolismo , Catalasa/metabolismo , Células Cultivadas , Relación Dosis-Respuesta a Droga , Etanol/administración & dosificación , Sangre Fetal/citología , Fluoresceínas , Fomepizol , Humanos , Concentración de Iones de Hidrógeno , Espacio Intracelular/metabolismo , Pirazoles/farmacología , Simportadores de Sodio-Bicarbonato/metabolismo , Intercambiadores de Sodio-Hidrógeno/metabolismo , Células Madre/metabolismo
8.
Arch Gynecol Obstet ; 283(4): 805-8, 2011 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-20339859

RESUMEN

OBJECTIVE: To compare transvaginal with laparoscopic tubal sterilization with respect to invasiveness and outcomes. METHOD: The outcomes of 103 patients who received interval tubal sterilization were compared. Group A (n = 38) underwent the transvaginal approach, group B (n = 38) a laparoscopic approach, and group C (n = 27) underwent mini-laparotomy due to difficulties encountered in one of the other procedures. RESULTS: There were no significant differences in patient age between the groups. There was no significant difference in operative time or blood loss between groups A and B. Operative time was significantly longer in group C (120 ± 35 min) than group A (40 ± 5 min) or group B (45 ± 9 min) (p < 0.05). Blood loss was significantly greater in group C (120 ± 30 ml) than in group A (10 ± 2 ml) or group B (10 ± 1 ml) (p < 0.05). The cost of transvaginal tubal sterilization was the lowest, and that of mini-laparotomy was the highest. There was no contraception failure in any group. CONCLUSIONS: Transvaginal tubal sterilization is technically more difficult, but when correctly performed it is not associated with an increased complication rate, and is less costly than laparoscopic sterilization.


Asunto(s)
Esterilización Tubaria/métodos , Adulto , Colpotomía/efectos adversos , Colpotomía/economía , Femenino , Humanos , Laparoscopía/efectos adversos , Laparoscopía/economía , Persona de Mediana Edad , Estudios Retrospectivos , Esterilización Tubaria/efectos adversos , Esterilización Tubaria/economía
9.
Reproduction ; 140(1): 105-12, 2010 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-20423932

RESUMEN

The applications of in vivo bioluminescent imaging (BLI) with a luciferase reporter gene occur widely across biomedical fields. Luciferase-transgenic mice are highly useful donors for tracking transplanted ovarian tissues. Realizing the full potential of this system may greatly benefit the study of the physiological behaviour and function of transplanted grafts, and the rapid and reliable evaluation of new transplantation protocols. The ovarian tissues of donor FVB/N-Tg(PolII-Luc)Ltc transgenic mice, with a luciferase transgene as the reporter, were transplanted into iso/allogeneic recipients. Rejection, ovarian function and BLI were quantitatively analysed in vivo over time. The BLI of the ovarian isografts revealed longer survival than that of allografts, even with cyclosporine A (CsA) treatment. The CD4(+)/CD8(+) ratios of peripheral T-cells were significantly reduced in allografts compared with those in isografts (P<0.0001) during rejection, whereas CD19(+) cell numbers were higher in allografts. The infiltration of CD4(+)/CD8(+) cells into the graft was unremarkable in isografts from day 1, but was strong in allografts from day 8 onwards. Hormone activity revealed complete oestrus cycles in the isografts but only the dioestrus stage in the allografts. These results demonstrate that BLI in vivo expedites the fast throughput and fate maps of ovarian grafts. The use of BLI to longitudinally monitor ovarian grafts for immunorejection demonstrated the short survival of allografts and the much longer survival of isografts. CsA treatment alone is ineffective against the acute rejection of ovarian allografts.


Asunto(s)
Rechazo de Injerto/patología , Supervivencia de Injerto/fisiología , Ovario/trasplante , Animales , Antígenos CD19/metabolismo , ADN Polimerasa II/genética , Ciclo Estral/fisiología , Femenino , Citometría de Flujo , Inmunohistoquímica , Estudios Longitudinales , Luminiscencia , Ratones , Ratones Endogámicos NOD , Ratones SCID , Ratones Transgénicos , Folículo Ovárico/fisiología , Fotones , Proyectos Piloto
10.
Carcinogenesis ; 29(2): 299-306, 2008 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-18174256

RESUMEN

Interferon-gamma (IFN-gamma) is known to downregulate HER2 oncoprotein (p185(HER2) or briefly p185) in prostate cancer cells. We demonstrate that the IFN-gamma-induced retinoid-inducible gene 1 (RIG1) acts as a transrepressor of p185. Furthermore, we exhibit that RIG1 downregulates the activated (phosphorylated) form of p185 and phosphoinositide-3 kinase (PI3K)/serine/threonine-specific protein kinase (Akt) and the mammalian target of rapamycin (mTOR), downstream substrates of HER2. We also elucidate that heregulin (HRG) specifically restores the activation of p185 and Akt after their activities are reduced by RIG1. Additionally, expression of vascular endothelial growth factor (VEGF) increases through the HER2- and Akt/mTOR-signaling pathways, indicating that VEGF is downregulated by RIG1 within the cell. These findings suggest that RIG1 plays a role in IFN-gamma-mediated therapy by downregulating p185 and its downstream PI3K/Akt/mTOR/VEGF-signaling pathway. These results may provide a new therapeutic mechanism for the clinical use of IFN-gamma and RIG1.


Asunto(s)
Regulación Neoplásica de la Expresión Génica , Neoplasias Ováricas/metabolismo , Fosfatidilinositol 3-Quinasas/metabolismo , Receptor ErbB-2/biosíntesis , Receptores de Ácido Retinoico/biosíntesis , Línea Celular Tumoral , Regulación hacia Abajo , Activación Enzimática , Femenino , Humanos , Interferón gamma/metabolismo , Modelos Biológicos , Neurregulina-1/metabolismo , Receptor ErbB-2/metabolismo , Transducción de Señal
11.
J Ethnopharmacol ; 120(3): 394-401, 2008 Dec 08.
Artículo en Inglés | MEDLINE | ID: mdl-18951965

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: Ganoderma, known as Lingzhi or Reishi, has been traditionally administered throughout Asia for centuries as a cancer treatment and for other medicinal purposes. AIM OF THE STUDY: To investigate the inhibitory activity and explore the molecular mechanisms of anti-tumor effect on colorectal cancer cells in vitro and in vivo as well as to test the side effects of Ganoderma tsugae. MATERIALS AND METHODS: Methanol fraction was obtained from dried fruiting bodies of Ganoderma. TLC and HPLC were performed to differentiate and confirm the identification of different species as well as to quantify the bioactive molecules in methanol extracts of Ganoderma species. MTT and Trypan blue exclusion assay as well as tumorigenesis study were used to assess the anti-tumor effect in vitro and in vivo. Using flow cytometry and Western Blots, we examined further the molecular mechanisms of anti-tumor effect. Finally, biochemical and hematological profiles and pathological examinations were used to evaluate the safety. RESULTS: The Ganoderma tsugae extracts inhibit colorectal cancer cell proliferation caused by accumulating cells in G(2)/M phase, and it may be through downregulation of cyclin A and B1 and upregulation of p21 and p27. Tumorigenesis study in nude mice revealed the extracts caused tumor shrinkage. Additionally, safety assay showed Ganoderma tsugae extracts caused no significant side effects in an animal model. CONCLUSIONS: This study provides molecular evidence that Ganoderma tsugae extracts exert anti-tumor effects both in vitro and in vivo on colorectal adenocarcinoma cells by inducing G(2)/M cell cycle arrest. More importantly, no significant physiological changes resulting from treatment with Ganoderma tsugae extracts were observed in the animal model. Therefore, these data provide new insights into the possible therapeutic use of Ganoderma tsugae for treating colorectal cancer.


Asunto(s)
Antineoplásicos Fitogénicos/uso terapéutico , Neoplasias Colorrectales/tratamiento farmacológico , Ganoderma/química , Fitoterapia , Extractos Vegetales/uso terapéutico , Adenocarcinoma/tratamiento farmacológico , Análisis de Varianza , Animales , Western Blotting , Ciclo Celular/efectos de los fármacos , Línea Celular Tumoral/efectos de los fármacos , Neoplasias Colorrectales/metabolismo , Ensayos de Selección de Medicamentos Antitumorales , Humanos , Medicina Tradicional China/métodos , Ratones , Ratones Desnudos , Taiwán
12.
FEBS Lett ; 592(10): 1643-1666, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29683472

RESUMEN

Ganoderma is classified as a top grade traditional Chinese medicine for promoting human health by regulating 'vital energy'. Its potency towards metabolism and energy homeostasis, particularly, metabolic adaptations of adipocytes, needs to be re-evaluated through an evidence-based study. Here, the triterpenoid-rich Ganoderma tsugae ethanol extract (GTEE) was found to contribute towards adipogenesis accompanied with elevated intracellular lipid metabolic flux. Additionally, proteomic profiling revealed GTEE-upregulated mitochondrial remodeling and chemical energy redox modifications, which display UCP1-positive browning fat-selective features and a NADH-mediated adaptive mechanism. GTEE-treated mice with diet-induced obesity also resulted in the amelioration of white adipocyte hypertrophy and the appearance of UCP1-positive browning adipocytes. Our novel findings unravel that GTEE could promote intracellular metabolic flexibility and plasticity followed by the induction of adipocyte browning.


Asunto(s)
Adipogénesis/efectos de los fármacos , Medicamentos Herbarios Chinos/farmacología , Proteínas Fúngicas/metabolismo , Ganoderma/metabolismo , Proteómica , Células 3T3-L1 , Adipocitos Marrones/metabolismo , Adipocitos Blancos/metabolismo , Animales , Western Blotting , Dieta , Medicamentos Herbarios Chinos/química , Electroforesis en Gel Bidimensional , Etanol/química , Ganoderma/química , Masculino , Ratones , NAD/metabolismo , Obesidad/prevención & control , Biogénesis de Organelos , Oxidación-Reducción , Espectrometría de Masa por Láser de Matriz Asistida de Ionización Desorción , Proteína Desacopladora 1/metabolismo
13.
FEBS Lett ; 581(23): 4443-9, 2007 Sep 18.
Artículo en Inglés | MEDLINE | ID: mdl-17719580

RESUMEN

The up-regulation of HER2/neu is associated with human malignancies and is a useful target for developing anticancer drugs. Overexpression of human manganese superoxide dismutase (MnSOD) has been demonstrated to effectively suppress various carcinoma cells, including breast carcinomas, in vitro and in vivo. This study demonstrates that MnSOD effectively suppresses HER2/neu oncogene expression at the transcriptional level. Additionally, stable transfection was used and the MnSOD-transfected human breast cancer clones were found to be able to down-regulate the endogenous production of p185(HER2/neu). Furthermore, the MnSOD-overexpressing stable transfectants exhibited reduced soft-agarose colony-forming ability and metastatic properties, unlike control cell lines. These data suggest that MnSOD may be useful in treating HER2/neu-mediated human breast tumor malignancy.


Asunto(s)
Neoplasias de la Mama/metabolismo , Receptor ErbB-2/metabolismo , Superóxido Dismutasa/metabolismo , Animales , Western Blotting , Neoplasias de la Mama/genética , Neoplasias de la Mama/patología , Línea Celular Tumoral , Movimiento Celular , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Ratones , Células 3T3 NIH , Regiones Promotoras Genéticas/genética , Receptor ErbB-2/genética , Superóxido Dismutasa/genética , Transfección
14.
Clin J Pain ; 22(9): 799-804, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-17057562

RESUMEN

OBJECTIVES: Both N-methyl-D-aspartate receptor antagonists and nonsteroidal anti-inflammatory drugs have been demonstrated to produce better postoperative pain relief. The concept of multimodal analgesia has also been used for clinical pain management. The aim of the present study was to examine the analgesic effect of preoperative cotreatment with dextromethorphan (DM) and ketorolac on postoperative pain management after laparoscopic-assisted vaginal hysterectomy (LAVH). METHODS: Eighty ASA physical status I or II patients scheduled for LAVH were included and randomly assigned to 1 of 4 groups. Patients received intramuscular (IM) chorpheniramine 20 mg+ intravenous (IV) 2 mL of normal saline, IM DM 40 mg+IV 2 mL of normal saline, IM chorpheniramine 20 mg+IV 60 mg (2 mL) of ketorolac, and IM DM 40 mg+IV ketorolac 60 mg as the groups C, DM, Keto, and DM+Keto, respectively. All patients were given a patient-controlled analgesia (PCA) with morphine for pain relief postoperatively. Analgesic effects were evaluated using Visual Analog Scale pain scores at rest and during coughing, time to first PCA request for pain relief, total morphine consumption, bed rest time, and the time to first passage of flatus for 48 hours after surgery. RESULTS: Patients in DM and Keto groups had significantly better pain relief than patients in group C. Patients in DM+Keto group exhibited the best postoperative pain relief among groups in the following several categories: time to first trigger of PCA, total morphine consumption, the worst Visual Analog Scale, bed rest time, and the time to first passage of flatus, demonstrating an enhanced effect between DM and ketorolac. Neither synergistic nor antagonistic interaction was observed between DM and ketorolac. DISCUSSION: Preoperative treatment with both DM and ketorolac diminish postoperative pain. Our results suggest that the N-methyl-D-aspartate antagonist-DM and the nonsteroidal anti-inflammatory drugs-ketorolac cotreatment provide an enhancement of analgesia for postoperative pain management in patients after LAVH surgery.


Asunto(s)
Dextrometorfano/administración & dosificación , Histerectomía Vaginal/efectos adversos , Ketorolaco/administración & dosificación , Laparoscopía/efectos adversos , Dolor Postoperatorio/diagnóstico , Dolor Postoperatorio/prevención & control , Adulto , Analgésicos Opioides/administración & dosificación , Antiinflamatorios no Esteroideos/administración & dosificación , Método Doble Ciego , Combinación de Medicamentos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Dolor Postoperatorio/etiología , Cuidados Preoperatorios/métodos , Resultado del Tratamiento
15.
Oncotarget ; 7(48): 78499-78515, 2016 Nov 29.
Artículo en Inglés | MEDLINE | ID: mdl-27655682

RESUMEN

The availability of adequate cancer stem cells or cancer stem-like cell (CSC) is important in cancer study. From ovarian cancer cell lines, SKOV3 and OVCAR3, we induced peritoneal ascites tumors in immunodeficient mice. Among the cells (SKOV3.PX1 and OVCAR3.PX1) from those tumors, we sorted both CD44 and CD133 positive cells (SKOV3.PX1_133+44+, OVCAR3.PX1_133+44+), which manifest the characteristics of self-renewal, multi-lineage differentiation, chemoresistance and tumorigenicity, those of cancer stem-like cells (CSLC). Intraperitoneal transplantation of these CD44 and CD133 positive cells resulted in poorer survival in the engrafted animals. Clinically, increased CD133 expression was found in moderately and poorly differentiated (grade II and III) ovarian serous cystadenocarcinomas. The ascites tumor cells from human ovarian cancers demonstrated more CD133 and CD44 expressions than those from primary ovarian or metastatic tumors and confer tumorigenicity in immunodeficient mice. Compared to their parental cells, the SKOV3.PX1_133+44+ and OVCAR3.PX1_133+44+ cells uniquely expressed 5 CD markers (CD97, CD104, CD107a, CD121a, and CD125). Among these markers, CD97, CD104, CD107a, and CD121a are significantly more expressed in the CD133+ and CD44+ double positive cells of human ovarian ascites tumor cells (Ascites_133+44+) than those from primary ovarian or metastatic tumors. The cancer stem-like cells were enriched from 3% to more than 70% after this manipulation. This intraperitoneal enrichment of cancer stem-like cells, from ovarian cancer cell lines or primary ovarian tumor, potentially provides an adequate amount of ovarian cancer stem-like cells for the ovarian cancer study and possibly benefits cancer therapy.


Asunto(s)
Antígeno AC133/metabolismo , Líquido Ascítico/metabolismo , Biomarcadores de Tumor/metabolismo , Separación Celular/métodos , Cistadenocarcinoma Seroso/metabolismo , Citometría de Flujo , Receptores de Hialuranos/metabolismo , Células Madre Neoplásicas/metabolismo , Neoplasias Ováricas/metabolismo , Animales , Antineoplásicos/farmacología , Líquido Ascítico/patología , Diferenciación Celular , Línea Celular Tumoral , Linaje de la Célula , Movimiento Celular , Proliferación Celular , Autorrenovación de las Células , Cistadenocarcinoma Seroso/tratamiento farmacológico , Cistadenocarcinoma Seroso/genética , Cistadenocarcinoma Seroso/secundario , Relación Dosis-Respuesta a Droga , Resistencia a Antineoplásicos , Femenino , Humanos , Ratones Endogámicos NOD , Ratones Desnudos , Ratones SCID , Metástasis de la Neoplasia , Células Madre Neoplásicas/efectos de los fármacos , Células Madre Neoplásicas/patología , Neoplasias Ováricas/tratamiento farmacológico , Neoplasias Ováricas/genética , Neoplasias Ováricas/patología , Fenotipo , Factores de Tiempo , Carga Tumoral , Células Tumorales Cultivadas
16.
Taiwan J Obstet Gynecol ; 55(2): 198-201, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-27125402

RESUMEN

OBJECTIVE: We investigated the necessity of preoperative bowel preparation for gynecological oncology surgery. MATERIALS AND METHODS: We retrospectively reviewed the medical records of patients who underwent gynecological oncology surgery with simultaneous colon or rectal resection between April 2005 and September 2014 at the Tri-Service General Hospital, Taipei, Taiwan. Patients were divided into two groups based on whether preoperative mechanical bowel preparation (MBP) was performed. Patient characteristics, including duration of antibiotic treatment, surgical procedures, and occurrence of surgical and nonsurgical complications, were compared. RESULTS: We enrolled 124 patients who underwent gynecological oncology surgery with simultaneous colon or rectal resection, of whom 76 received MBP and 48 did not receive mechanical bowel preparation. On comparison between the two groups, no significant differences were noted in the assessed patient characteristics, including mean age (p = 0.61), Federation of Gynecology and Obstetrics stage (p = 0.9), American Society of Anesthesiologists grade (p = 0.9), body mass index (p = 0.8), and residual tumor size (p = 0.86). Furthermore, duration of antibiotic treatment (p = 0.97), surgical procedures (p = 0.99), and total hospital days (p = 0.75), were not different between groups. The risk of surgical (p = 0.78) or nonsurgical (p = 1.0) complications was not significantly higher in the non-MBP group than in the MBP group. CONCLUSION: MBP provides no significant benefit during gynecological oncology surgery. Thus, preoperative MBP is not essential before gynecological oncology surgery and can be omitted.


Asunto(s)
Antibacterianos/administración & dosificación , Profilaxis Antibiótica , Colectomía , Neoplasias de los Genitales Femeninos/cirugía , Laxativos/administración & dosificación , Recto/cirugía , Absceso Abdominal/etiología , Anciano , Fuga Anastomótica/etiología , Colectomía/efectos adversos , Enema , Femenino , Humanos , Persona de Mediana Edad , Cuidados Preoperatorios , Estudios Retrospectivos , Infección de la Herida Quirúrgica/etiología
17.
Obstet Gynecol ; 105(5 Pt 2): 1191-3, 2005 May.
Artículo en Inglés | MEDLINE | ID: mdl-15863577

RESUMEN

BACKGROUND: Few reports have described adenomyosis in association with congenital uterine abnormalities. The authors present a case involving unilateral adenomyosis in a bicornuate uterus. CASE: A 41-year-old married gravida 1, para 1, first became aware that she had a double uterus 14 years earlier at her first prenatal examination when the gestation was identified in the left uterine cavity because of intractable dysmenorrhea. The patient underwent laparoscopically assisted vaginal hysterectomy. Pathological examination confirmed that adenomyosis had affected only the left uterine myometrium. CONCLUSION: The right uterine cornua of a bicornuate uterus served as the control after a pregnancy in the left cornua. The subsequent development of adenomyosis in the left cornua lends weight to theories that suggest pregnancy or other acquired factors may be involved in the pathogenesis and development of adenomyosis.


Asunto(s)
Adenomioma/diagnóstico , Anomalías Congénitas/diagnóstico , Histerectomía Vaginal/métodos , Neoplasias Uterinas/diagnóstico , Útero/anomalías , Adenomioma/cirugía , Adulto , Biopsia con Aguja , Anomalías Congénitas/cirugía , Dismenorrea/diagnóstico , Dismenorrea/etiología , Femenino , Estudios de Seguimiento , Humanos , Histeroscopía/métodos , Inmunohistoquímica , Medición de Riesgo , Resultado del Tratamiento , Ultrasonografía Doppler , Neoplasias Uterinas/cirugía
18.
J Androl ; 25(3): 348-53, 2004.
Artículo en Inglés | MEDLINE | ID: mdl-15064311

RESUMEN

Increased DNA fragmentation is found in sperm from infertile men. Varicocele is an important cause of male infertility, even though it is present in 15% of men who father children. Semen analysis does not always identify infertility in these patients. Sperm motility is strongly correlated with male fertility potential. The goal of this study was to determine the correlation between apoptosis and kinematics in the ejaculated spermatozoa of patients affected by varicocele. Fresh semen samples were obtained from 30 patients with varicocele and 15 fertile controls. These samples were compared using computer-assisted semen analysis and were assayed to determine the degree of sperm apoptosis. The apoptotic index (AI) was calculated by dividing the number of terminal deoxynucleotidyl transferase-mediated deoxyuridine-5'-triphosphate nick end labeling (TUNEL) stained spermatozoa by the total number of Hoechst 33258-stained sperm cells for 300 sperm. Five microscopic fields were analyzed to obtain 5 AIs for each individual. Results demonstrated no significant difference in semen quality and sperm motion characteristics; however, a significantly higher AI (23.05% +/- 4.07%: mean difference +/- SE, 95% CI, 15.06%-31.03%, P <.0001) was identified in the varicocele group than in the fertile controls. We concluded that sperm apoptosis does not seem to correlate with semen quality and sperm kinematics and that apoptosis is increased in ejaculated spermatozoa in patients with varicocele compared to normal fertile men.


Asunto(s)
Apoptosis , Eyaculación , Motilidad Espermática , Espermatozoides , Varicocele/fisiopatología , Adulto , Fenómenos Biomecánicos , Estudios de Casos y Controles , Humanos , Masculino
19.
J Pediatr Endocrinol Metab ; 17(3): 365-9, 2004 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-15112914

RESUMEN

McCune-Albright syndrome (MAS) is a rare disorder characterized by the classic triad of precocious puberty, polyostotic fibrous dysplasia and café-au-lait spots. Additional endocrine abnormalities may also be present, including hyperthyroidism, growth hormone excess and hyperprolactinemia. The most commonly encountered endocrine dysfunction is gonadal hyperfunction. Gonadotropin-independent precocious puberty is typically the initial manifestation of MAS in girls. Ovarian cysts may be detected on pelvic ultrasound. Our patient was also found to have pituitary microadenoma, evidenced by dynamic magnetic resonance imaging.


Asunto(s)
Adenoma/complicaciones , Neoplasias de las Glándulas Suprarrenales/complicaciones , Manchas Café con Leche/complicaciones , Displasia Fibrosa Poliostótica/complicaciones , Neoplasias Hipofisarias/complicaciones , Pubertad Precoz/complicaciones , Neoplasias de la Tiroides/complicaciones , Adenoma/diagnóstico , Adenoma/metabolismo , Neoplasias de las Glándulas Suprarrenales/diagnóstico , Pueblo Asiatico , Manchas Café con Leche/diagnóstico , Enfermedades del Sistema Endocrino , Femenino , Displasia Fibrosa Poliostótica/diagnóstico , Displasia Fibrosa Poliostótica/diagnóstico por imagen , Prueba de Tolerancia a la Glucosa , Gónadas/metabolismo , Gónadas/fisiopatología , Hormona de Crecimiento Humana/sangre , Hormona de Crecimiento Humana/metabolismo , Humanos , Hiperprolactinemia/sangre , Hiperprolactinemia/complicaciones , Hipertiroidismo/complicaciones , Hipertiroidismo/diagnóstico , Lactante , Imagen por Resonancia Magnética/métodos , Quistes Ováricos/complicaciones , Quistes Ováricos/diagnóstico , Quistes Ováricos/diagnóstico por imagen , Pelvis/diagnóstico por imagen , Neoplasias Hipofisarias/diagnóstico , Neoplasias Hipofisarias/metabolismo , Pubertad Precoz/diagnóstico , Radiografía , Tamoxifeno/uso terapéutico , Neoplasias de la Tiroides/diagnóstico , Ultrasonografía , Excreción Vaginal/etiología
20.
J Formos Med Assoc ; 101(5): 359-61, 2002 May.
Artículo en Inglés | MEDLINE | ID: mdl-12101855

RESUMEN

Rhesus (Rh) isoimmunization presenting as severe neonatal hemolytic disease is rare in RhD negative primigravidas of Chinese ethnicity. We report the case of a 32-year-old pregnant Taiwanese woman, RhD negative, who gave birth vaginally to two RhD-positive full-term fetuses 6 years apart. Antenatal follow-up was uneventful and there was no obvious fetal-maternal hemorrhage except at the performance of amniocentesis at the 19th week of the first pregnancy without anti-D immune globulin prophylaxis. Although anti-D immune globulins were administered to the mother within 1 hour after each birth, both of the newborns had severe neonatal hemolysis refractory to phototherapy and were rescued by exchange transfusions. Both of the children were well at age 7-years-old and one-year-old respectively In conclusion, with suspicion of fetal-maternal hemorrhage in RhD-negative pregnancies post amniocentesis, serial monitoring of indirect Coombs titer with appropriate management is mandatory.


Asunto(s)
Hemólisis , Proteínas Recombinantes de Fusión , Isoinmunización Rh/complicaciones , Sistema del Grupo Sanguíneo Rh-Hr , Adulto , Femenino , Humanos , Isoanticuerpos/uso terapéutico , Proteínas de Fusión Oncogénica , Embarazo , Globulina Inmune rho(D)
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA