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ObjectiveãThe Kawagoe City Public Health Center implemented a project to reduce salt intake through specific food service facility guidance in workplace cafeterias. Here, we report the study results.MethodsãThe target worksite was company A, with approximately 270 employees, located in Kawagoe City, Saitama Prefecture. There were 214 participants (approximately 80%). The project was conducted from November 2019 to November 2021. The long-term goal was to decrease the number of hypertensive cases in the city. Project outcomes included decreased salt intake, urinary sodium/potassium ratio, and average blood pressure. The project aimed to improve the cafeteria menu, focusing on salt reduction by offering Smart Meals® and reducing the salt equivalents in all menus. The project output indicators included reduced amount of salt in cafeteria menu items, increased frequency of cafeteria use, increased positive evaluations of the cafeteria, and increased daily awareness of the need for salt reduction. Spot urine samples, blood pressure measurements, and self-administered questionnaire data were collected during annual physical examinations. The amount of salt in the cafeteria menu was evaluated by receiving monthly data from the food service company to which company A outsourced its cafeteria operations.ResultsãThe analysis included 102 individuals with complete data from to 2019-2021. Estimated salt intake (g/day) from spot urine decreased from 10.3±2.1 in 2019 to 9.8±2.4 in 2020 and 9.5±2.0 in 2021 (P=0.003). Systolic blood pressure (mmHg) decreased from 114.7±12.5 in 2019 to 111.7±12.1 in 2020 and 110.6±12.0 in 2021 (P=0.010). Compared to 2019, changes in dietary salt equivalents in cafeteria menus in 2020 and 2021decreased for set meals A and B, curries, and noodles (P<0.001).ConclusionãWe offered Smart Meals® and reduced salt equivalents in all workplace cafeteria menus. After 1-2 years, employees' salt intake and blood pressure levels were lower. These results provide implications for the implementation of food environment improvements in public health centers and other local government agencies to promote the Health Japan 21 (third term) strategy.
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Servicios de Alimentación , Hipertensión , Cloruro de Sodio Dietético , Lugar de Trabajo , Humanos , Japón , Cloruro de Sodio Dietético/administración & dosificación , Masculino , Femenino , Hipertensión/prevención & control , Adulto , Persona de Mediana Edad , Salud Pública , Presión Sanguínea , Encuestas y CuestionariosRESUMEN
BACKGROUND/AIM: SIRT6 is one of seven human sirtuin genes and is known to act as an onco-suppressor gene in colorectal and ovarian cancers, although it is up-regulated in other cancers. Thus, SIRT6 is considered performing both tumor-suppressing and promoting roles. However, the association of SIRT6 with oral squamous cell carcinoma (OSCC) and its role in OSCC pathogenesis is currently unclear. This study aimed to investigate the expression of SIRT6 in patients with OSCC and its potential as a biomarker for early detection and prognosis prediction. MATERIALS AND METHODS: Immunohistochemistry, quantitative real-time RT-PCR, and microarray analyses were performed to determine SIRT6 expression and its association with clinicopathological features in OSCC using clinical specimens. RESULTS: SIRT6 mRNA and protein expression levels were higher in OSCC tissues than in noncancerous tissues (p<0.05). SIRT6 expression was predominant in patients aged ≥65 years and significantly correlated with shorter overall survival. In the microarray analysis, some SIRT6-associated genes, such as ANXA2, were up-regulated in OSCC. CONCLUSION: SIRT6 plays a role in tumor homeostasis, leading to a poor prognosis in OSCC. SIRT6 may represent a novel target not only for treatment, but also as a prognostic marker in OSCC.
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Neoplasias de la Boca , Sirtuinas , Carcinoma de Células Escamosas de Cabeza y Cuello , Anciano , Biomarcadores de Tumor/genética , Humanos , Neoplasias de la Boca/genética , Neoplasias de la Boca/patología , Pronóstico , Sirtuinas/genética , Carcinoma de Células Escamosas de Cabeza y Cuello/genética , Carcinoma de Células Escamosas de Cabeza y Cuello/patología , Resultado del TratamientoRESUMEN
Two types of interleukin (IL)-5 antibody biologics, anti-IL-5 antibodies (mepolizumab) and anti-IL-5α receptor antibodies (benralizumab), are indicated for severe asthma. While high-dose mepolizumab is also indicated for EGPA, benralizumab is indicated only for severe asthma. Benralizumab is characterized by antibody-dependent cell-mediated cytotoxicity activity, giving them specific and rapid anti-IL-5α receptor binding abilities and the ability to target a high number of eosinophils in tissues as well as peripheral blood. Recently, reports on the efficacy of benralizumab as a treatment for EGPA have been published, along with reports on some cases that are difficult to treat with existing oral corticosteroids and mepolizumab. Therefore, we focus on the perspective of the efficacy and safety of benralizumab as a treatment for EGPA patients with steroid dependence in this review. A total of 41 patients with EGPA were treated with benralizumab. After the introduction of benralizumab, oral corticosteroids could be reduced to 10 mg/day or less in all cases and to less than 5 mg/day in 80% or more of the cases. Discontinuation of oral corticosteroids was achieved in more than 40% of patients with EGPA. Benralizumab was effective in patients with mepolizumab-refractory EGPA and intractable cardiac and neuropathy complications. Efficient elimination of eosinophils is expected to improve the remission rate of EGPA with benralizumab treatment. Although the total number of patients was small, benralizumab was safe and tolerable in a wide range of age groups, suggesting efficacy in severe cases with EGPA.
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Neck dissection (ND) is a major surgery for head and neck cancer. Currently, some or all of the spinal accessory nerve (SAN), sternocleidomastoid muscle, and internal jugular vein (IJV) are aggressively preserved during ND to reduce postoperative complications. Since the anatomical relationship between the SAN and IJV has several variations, knowledge of these variations is necessary to avoid iatrogenic damage. In the present case, the SAN was observed to pass through the fenestrated IJV at the level of the posterior belly of the digastric muscle during ND in a patient with squamous cell carcinoma of the mandible. Although the anatomical structure of the SAN and IJV is rare, surgeons must be aware of this anatomical variation.
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We report the case of a lip epidermoid cyst, caused by piercing in a 23-year-old Japanese woman. She had an exophytic lesion in the lower lip associated with the piercing which was initially diagnosed as a mucous retention cyst. The lesion was resected under local anesthesia, and pathological examination revealed an epidermoid cyst, likely caused by piercings. Piercing-induced epidermoid cysts frequently occur in the tragus. There have been no reports of piercing-induced epidermoid cysts developing in the oral cavity. To our knowledge, this is the first report of a lip epidermal cyst caused by piercings. Six months have passed since the operation, and it has not recurred.
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Various treatments for oral vascular malformation (VM) have been reported. Polidocanol and absolute ethanol have also been reported for sclerotherapy. However, there are still few reports on the therapeutic effect and dosage of polidocanol sclerotherapy. Therefore, we examined its therapeutic effects on oral VM. There were 17 sites of VMs, with nine patients diagnosed with oral VM at the Department of Dental and Oral Surgery, Tsukuba University Hospital. The medical records were retrospectively investigated to determine the site, hemangioma volume, polidocanol injection volume, and therapeutic effect. The volume of hemangiomas was calculated using magnetic resonance images. Based on the site, oral VMs were observed in the tongue, buccal mucosa, lips, and oral floor in eight, three, five, and one patients, respectively. The average size of the site was 3071 mm3. The average injection dose of polidocanol at one site was 2.86 mL, the average number of administrations was 1.6, and the response rate was 88.2%. No adverse events were observed. The median numerical rating scale scores were 2/10 (0-6/10) and 0/10 (0-1/10) the day after surgery and 1 week after surgery, respectively. Univariate regression analysis of the total dose in successful cases provided the following formula: 1.3 + 0.00025 × volume (mm3) (mg). Polidocanol sclerotherapy is an effective treatment method for oral VM.
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The prevalence of medication-related osteonecrosis of the jaw (MRONJ) associated with molecular-targeted therapies such as bevacizumab and sunitinib has been constantly increasing in recent years. MRONJ frequently occurs after invasive dental procedures such as tooth extraction in patients currently or with a previous history of receiving antiresorptive agents including bisphosphonates and/or denosumab. Here, we report a rare case of spontaneously occurring MRONJ of the mandible in a 52-year-old Japanese woman with chronic myelogenous leukemia (CML) who was administered imatinib for 9 years. She had never been treated with antiresorptive agents, and her MRONJ developed spontaneously. Although there have been few reports of MRONJ related to imatinib, our case reported here indicates that imatinib may be capable of causing spontaneous MRONJ.
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BACKGROUND/AIM: Treatment failure in oral cancer is mainly caused by uncontrolled cervical lymph node (LN) metastasis. We previously reported that CD11b+ cells are recruited into tumor hypoxic areas following radiation, leading to re-vascularization and relapse. Since lymphatic vessel formation has similarities with vascular formation, we examined whether surgery induces hypoxia and stimulates lymphangiogenesis. MATERIALS AND METHODS: The recruitment of CD11b+ cells and the formation of lymphatic vessels were examined using orthotopic tongue cancer mouse models with glossectomy. RESULTS: Surgery on OSC-19 tumor induced LN metastases and hypoxia, followed by CD11b+ cell influx. These phenomena were not observed in the no tumor or SAT tumor models. Stimulation of lymphangiogenesis was observed in the CD11b+ cell influx area, as the tumor grew. The localization of CD11b+ cells was changed from the lymph nodules to the medullary sinuses. CONCLUSION: Surgery-induced hypoxia in oral tumors leads to CD11b+ cell infiltration, lymphangiogenesis, and LN metastasis.
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Antígeno CD11b/metabolismo , Hipoxia/metabolismo , Linfocitos/metabolismo , Neoplasias de la Boca/metabolismo , Neoplasias de la Boca/patología , Animales , Línea Celular Tumoral , Movimiento Celular , Modelos Animales de Enfermedad , Técnica del Anticuerpo Fluorescente , Humanos , Linfangiogénesis , Metástasis Linfática , Linfocitos/patología , Ratones , Neoplasias de la Boca/cirugía , Estadificación de Neoplasias , Neovascularización Patológica/metabolismo , Ensayos Antitumor por Modelo de XenoinjertoRESUMEN
Ginkgo biloba extracts have been postulated to beneficial for improving cognitive function and as such they have been used as a potential treatment of Alzheimer's disease. The main active ingredients of the extract are terpene trilactones (TTLs), such as bilobalide (BB) and ginkgolides. Several structure-activity relationship (SAR) studies using ginkgolide scaffolds produced more biologically potent species by modification of the lactone moieties. However, modifications of BB scaffold have been limited, and no SAR studies on BB have been accomplished to date. Thus, the aim of this study was to elucidate how the modification of the lactone moieties of BB would affect their biological activities in a number of assays, including proliferating cell activity, neuroprotective effects against Aß (1-40) peptides, and neurite outgrowth effects in PC12 neuronal cells. It appeared that the derivatives containing lactone groups showed similar biological activity to native BB, while those that possessed no lactone moieties exhibited lower neurite outgrowth effects. Thus, the results suggested that the lactone moieties of BB played an important role in exerting neurite outgrowth effects in PC12 cells.
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Péptidos beta-Amiloides/antagonistas & inhibidores , Ciclopentanos/farmacología , Furanos/farmacología , Ginkgólidos/farmacología , Fármacos Neuroprotectores/farmacología , Fragmentos de Péptidos/antagonistas & inhibidores , Animales , Proliferación Celular/efectos de los fármacos , Células Cultivadas , Cristalografía por Rayos X , Ciclopentanos/química , Ciclopentanos/aislamiento & purificación , Relación Dosis-Respuesta a Droga , Furanos/química , Furanos/aislamiento & purificación , Ginkgólidos/química , Ginkgólidos/aislamiento & purificación , Modelos Moleculares , Estructura Molecular , Neuronas/efectos de los fármacos , Fármacos Neuroprotectores/química , Fármacos Neuroprotectores/aislamiento & purificación , Células PC12 , Ratas , Relación Estructura-ActividadRESUMEN
INTRODUCTION: Children with unilateral cleft lip and palate (UCLP) exhibit snoring and mouth breathing. They are also reported to show obstructive sleep apnea syndrome. However, their upper airway ventilation condition is not clearly understood. Therefore, this study was performed to evaluate upper airway ventilation condition in children with UCLP with the use of computational fluid dynamics. METHODS: Twenty-one children (12 boys, 9 girls; mean age 9.1 years) with UCLP and 25 children (13 boys, 12 girls; mean age 9.2 years) without UCLP who required orthodontic treatment underwent cone-beam computed tomography (CBCT). Nasal resistance and upper airway ventilation condition were evaluated with the use of computational fluid dynamics from CBCT data. The groups were compared with the use of Mann-Whitney U tests and Student t tests. RESULTS: Nasal resistance of the UCLP group (0.97 Pa/cm3/s) was significantly higher than that of the control group (0.26 Pa/cm3/s; P < 0.001). Maximal pressure of the upper airway (335.02 Pa) was significantly higher in the UCLP group than in the control group (67.57 Pa; P < 0.001). Pharyngeal airway (from choanae to base of epiglottis) pressure in the UCLP group (140.46 Pa) was significantly higher than in the control group (15.92 Pa; P < 0.02). CONCLUSIONS: Upper airway obstruction in children with UCLP resulted from both nasal and pharyngeal airway effects.
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Labio Leporino/patología , Fisura del Paladar/patología , Tomografía Computarizada de Haz Cónico/métodos , Hidrodinámica , Laringe/anatomía & histología , Nariz/anatomía & histología , Tonsila Faríngea/anatomía & histología , Puntos Anatómicos de Referencia , Niño , Labio Leporino/diagnóstico por imagen , Fisura del Paladar/diagnóstico por imagen , Epiglotis/anatomía & histología , Epiglotis/diagnóstico por imagen , Femenino , Humanos , Hueso Hioides/anatomía & histología , Imagenología Tridimensional/métodos , Laringe/diagnóstico por imagen , Maloclusión Clase I de Angle , Nasofaringe/anatomía & histología , Nasofaringe/diagnóstico por imagen , Nariz/diagnóstico por imagen , Respiración , Apnea Obstructiva del SueñoRESUMEN
We investigated the effects of resolvin E (RvE) 1, RvE2, and RvE3 on IL-4- and IL-33-stimulated bone marrow-derived dendritic cells (BMDCs) from house dust mite (HDM)-sensitized mice. We also investigated the role of RvE3 in a murine model of HDM-induced airway inflammation. In vitro, BMDCs from HDM-sensitized mice were stimulated with IL-4 and IL-33 and then treated with RvE1, RvE2, RvE3, or vehicle. RvE1, RvE2, and RvE3 suppressed IL-23 release from BMDCs. In vivo, RvE3 administrated to HDM-sensitized and challenged mice in the resolution phase promoted a decline in total numbers of inflammatory cells and eosinophils, reduced levels of IL-23 and IL-17 in lavage fluid, and suppressed IL-23 and IL-17A mRNA expression in lung and peribronchial lymph nodes. RvE3 also reduced resistance in the lungs of HDM-sensitized mice. A NanoBiT ß-arrestin recruitment assay using human embryonic kidney 293 cells revealed that pretreatment with RvE3 suppressed the leukotriene B4 (LTB4)-induced ß-arrestin 2 binding to LTB4 receptor 1 (BLT1R), indicating that RvE3 antagonistically interacts with BLT1R. Collectively, these findings indicate that RvE3 facilitates the resolution of allergic airway inflammation, partly by regulating BLT1R activity and selective cytokine release by dendritic cells. Our results accordingly identify RvE3 as a potential therapeutic target for the management of asthma.-Sato, M., Aoki-Saito, H., Fukuda, H., Ikeda, H., Koga, Y., Yatomi, M., Tsurumaki, H., Maeno, T., Saito, T., Nakakura, T., Mori, T., Yanagawa, M., Abe, M., Sako, Y., Dobashi, K., Ishizuka, T., Yamada, M., Shuto, S., Hisada, T. Resolvin E3 attenuates allergic airway inflammation via the interleukin-23-interleukin-17A pathway.
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Asma/inmunología , Ácidos Grasos Insaturados/inmunología , Interleucina-17/inmunología , Subunidad p19 de la Interleucina-23/inmunología , Transducción de Señal/inmunología , Animales , Asma/patología , Células de la Médula Ósea/inmunología , Células de la Médula Ósea/patología , Células Dendríticas/inmunología , Células Dendríticas/patología , Femenino , Regulación de la Expresión Génica/inmunología , Leucotrieno B4/inmunología , Ratones , Ratones Endogámicos BALB C , Pyroglyphidae/inmunología , Receptores de Leucotrieno B4/inmunología , Arrestina beta 2/inmunologíaRESUMEN
There are many downstream targets of mitogen-activated protein kinase (MAPK) signalling that are involved in neuronal development, cellular differentiation, cell migration, cancer, cardiovascular dysfunction and inflammation via their functions in promoting apoptosis and cell motility and regulating various cytokines. It has been reported that cyclic AMP response element-binding protein (CREB) is phosphorylated and activated by cyclic AMP signalling and calcium/calmodulin kinase. Recent evidence also points to CREB phosphorylation by the MAPK signalling pathway. However, the specific roles of CREB phosphorylation in MAPK signalling have not yet been reviewed in detail. Here, we describe the recent advances in the study of this MAPK-CREB signalling axis in human diseases. Overall, the crosstalk between extracellular signal-related kinase (ERK) 1/2 and p38 MAPK signalling has been shown to regulate various physiological functions, including central nervous system, cardiac fibrosis, alcoholic cardiac fibrosis, osteoclast differentiation, mucin production in the airway, vascular smooth muscle cell migration, steroidogenesis and asthmatic inflammation. In this review, we focus on ERK1/2 and/or p38 MAPK-dependent CREB activation associated with various diseases to provide insights for basic and clinical researchers.
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Sistema Cardiovascular/metabolismo , Sistema Nervioso Central/metabolismo , Proteína de Unión a Elemento de Respuesta al AMP Cíclico/metabolismo , Citocinas/metabolismo , Sistema de Señalización de MAP Quinasas , Mucinas/metabolismo , Osteoclastos/metabolismo , Animales , Enfermedades Cardiovasculares/metabolismo , Diferenciación Celular , Enfermedades del Sistema Nervioso Central/metabolismo , Humanos , Osteoclastos/citología , FosforilaciónRESUMEN
Aggressive behaviour by psychiatric patients is a serious issue in clinical practice, and adequate management of such behaviour is required, with careful evaluation of the factors causing the aggression. To examine the characteristics of aggressive incidents by ward type, a cross-sectional descriptive study was conducted for 6 months between April 2012 and June 2013 using the Staff Observation Aggression Scale - Revised, Japanese version (SOAS-R) in 30 wards across 20 Japanese psychiatric hospitals. Participating wards were categorized into three types based on the Japanese medical reimbursement system: emergency psychiatric, acute psychiatric, and standard wards (common in Japan, mostly treating non-acute patients). On analyzing the 443 incidents reported, results showed significant differences in SOAS-R responses by ward type. In acute and emergency psychiatric wards, staff members were the most common target of aggression. In acute psychiatric wards, staff requiring patients to take medication was the most common provocation, and verbal aggression was the most commonly used means. In emergency psychiatric wards, victims felt threatened. In contrast, in standard wards, both the target and provocation of aggression were most commonly other patients, hands were used, victims reported experiencing physical pain, and seclusion was applied to stop their behaviour. These findings suggest that ward environment was an important factor influencing aggressive behaviour. Ensuring the quality and safety of psychiatric care requires understanding the characteristics of incidents that staff are likely to encounter in each ward type, as well as implementing efforts to deal with the incidents adequately and improve the treatment environment.
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Agresión , Pacientes Internos/psicología , Servicio de Psiquiatría en Hospital , Adulto , Agresión/psicología , Estudios Transversales , Femenino , Humanos , Pacientes Internos/estadística & datos numéricos , Japón/epidemiología , Masculino , Persona de Mediana Edad , Servicio de Psiquiatría en Hospital/estadística & datos numéricos , Escalas de Valoración Psiquiátrica , Factores de RiesgoRESUMEN
Objective It is difficult to compare directly the practical effects of lifestyle modifications and antihypertensive medications on reducing cardiovascular disease (CVD). The purpose of this study was to compare the hypothetical potential of lifestyle modifications with that of antihypertensive medications in reducing CVD in an aging society using a success rate-oriented simulation. Methods We constructed a simulation model for virtual Japanese subpopulations according to sex and age at 10-year intervals from 40 years of age as an example of an aging society. The fractional incidence rate of CVD was calculated as the product of the incidence rate at each systolic blood pressure (SBP) level and the proportion of the SBP frequency distribution in the fractional subpopulations of each SBP. The total incidence rate was calculated by the definite integral of the fractional incidence rate at each SBP level in the sex- and age-specific subpopulations. Results If we consider the effects of lifestyle modifications on metabolic factors and transfer them onto SBP, the reductions in the total incidence rate of CVD were competitive between lifestyle modifications and antihypertensive medications in realistic scenarios. In middle-aged women, the preventive effects of both approaches were limited due to a low incidence rate. In middle-aged men and extremely elderly subjects whose adherence to antihypertensive medications is predicted to be low, lifestyle modifications could be an alternative choice. Conclusion The success rate-oriented simulation suggests that the effectiveness of lifestyle modifications or antihypertensive medications in preventing cardiovascular events largely depends on the baseline incidence rate and sex- and age-specific behavioral factors.
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Envejecimiento/fisiología , Antihipertensivos/uso terapéutico , Hipertensión/terapia , Estilo de Vida , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Presión Sanguínea , Simulación por Computador , Femenino , Humanos , Hipertensión/tratamiento farmacológico , Japón , Masculino , Persona de Mediana Edad , Factores de Riesgo , Factores SexualesRESUMEN
Cynaropicrin is a guaianolide sesquiterpene lactone, which has potent in vitro and in vivo inhibitory activity against Trypanosoma brucei, the protozoan parasite that causes human African trypanosomiasis (HAT; sleeping sickness). Herein, we describe the synthesis of cynaropicrin's deuterated derivative, cynaropicrin-d4, by the replacement of the side chain of natural cynaropicrin. The synthesized cynaropicrin-d4 could be employed as an internal standard for liquid chromatography-mass spectrometry (LC-MS) analysis, in the pharmacokinetic study of cynaropicrin. This could potentially advance the study of this therapeutic lead.
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Deuterio/química , Lactonas/síntesis química , Sesquiterpenos/síntesis química , Lactonas/química , Estructura Molecular , Sesquiterpenos/química , Tripanocidas/síntesis química , Tripanocidas/químicaRESUMEN
BACKGROUND: This study was attempted to investigate whether lifestyle modifications supported by regional health nurses should improve cardio-metabolic factors--including adipocytokines, oxidative stress, and arterial stiffness--in subjects with metabolic syndrome. METHODS: Thirty-six subjects with metabolic syndrome were enrolled, 28 of whom completed the 6-month lifestyle modifications (male:female=19:9). Blood and urine test results were examined in relation to metabolic factors before and after 6-month nutritional and physical activity modifications. In addition, oral glucose tolerance tests were performed and arterial stiffness was measured by brachial-ankle pulse wave velocity and radial augmentation index before and after them. RESULTS: Six-month lifestyle modifications significantly reduced body weight, homeostasis model assessment index, and low-density lipoprotein cholesterol (LDL-C). They significantly attenuated oxidative stress measured by the urinary 8-hydroxy-2-deoxyguanosine/creatinine ratio. They also lowered brachial and central systolic blood pressure. They tended to decrease waist circumferences and the levels of C-reactive protein. However they did not significantly change the levels of adipocytokines, including tumour necrosis factor, soluble tumour necrosis factor receptors, and interleukin 6, or arterial stiffness measured by brachial-ankle pulse wave velocity and radial augmentation index. CONCLUSIONS: Six-month lifestyle modifications supported by regional health nurses lowered body weight, insulin resistance, LDL-C, oxidative stress, and peripheral and central blood pressure in subjects with metabolic syndrome.
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Consejo Dirigido/métodos , Inflamación/fisiopatología , Síndrome Metabólico/enfermería , Síndrome Metabólico/fisiopatología , Enfermería en Salud Pública/organización & administración , Regionalización/organización & administración , Conducta de Reducción del Riesgo , Adulto , Anciano , Índice Tobillo Braquial , Biomarcadores/sangre , Presión Sanguínea , Proteína C-Reactiva/metabolismo , Femenino , Estudios de Seguimiento , Prueba de Tolerancia a la Glucosa , Humanos , Resistencia a la Insulina , Japón/epidemiología , Masculino , Síndrome Metabólico/sangre , Síndrome Metabólico/terapia , Persona de Mediana Edad , Estrés Oxidativo , Factores de Riesgo , Rigidez VascularRESUMEN
OBJECTIVE: Myomatous erythrocytosis syndrome is a rare complication of uterine leiomyoma caused by erythropoietin (EPO) that is produced by tumor cells. We assessed the EPO expression in leiomyomas and investigated the effects of EPO on the tumor growth. STUDY DESIGN: Tissue samples were collected from 114 patients with uterine leiomyomas who underwent myomectomy or hysterectomy in Yokohama City University Hospital. From 17 patients, the corresponding normal myometrium was also collected. All samples were analyzed for EPO messenger RNA (mRNA) expression by real-time reverse transcription-polymerase chain reaction. EPO protein expression was determined by an enzyme-linked immunosorbent assay. The relationships between EPO expression and clinicopathological features were retrospectively analyzed using the patients' charts. Blood vessel density and maturity were assessed using hematoxylin-eosin staining and CD34 immunohistochemistry. RESULTS: EPO mRNA expression was detected in 108 of 114, or 95%, of the leiomyomas. The mean EPO mRNA expression in the leiomyoma was higher than the corresponding normal myometrium (3836 ± 4122 vs 1455 ± 2141; P = .025 by Wilcoxon rank test). The EPO mRNA expression in the leiomyomas varied extensively among samples, ranging from undetectable levels to 18-fold above the mean EPO mRNA of normal myometrium. EPO protein production was observed concomitant with mRNA expression. A positive correlation of leiomyoma size and EPO mRNA expression was shown by Spearman rank correlation coefficient (ρ = 0.294; P = .001), suggesting the involvement of EPO in leiomyoma growth. The blood vessel maturity was also significantly increased in EPO-producing leiomyomas (high vessel maturity in high vs low EPO group: 67% vs 20%; P = .013 by Fisher exact test). CONCLUSION: This report demonstrates that EPO is produced in most of conventional leiomyomas and supports a model in which EPO accelerates tumor growth, possibly by inducing vessel maturity. Our study suggests one possible mechanism by which some uterine leiomyomas reach a large size, and the understanding of EPO expression patterns in these tumors may be useful for management of the patients with leiomyomas.
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Vasos Sanguíneos/patología , Eritropoyetina/genética , Leiomioma/genética , Miometrio/metabolismo , ARN Mensajero/metabolismo , Neoplasias Uterinas/genética , Adulto , Anciano , Antígenos CD34/metabolismo , Vasos Sanguíneos/metabolismo , Ensayo de Inmunoadsorción Enzimática , Eritropoyetina/metabolismo , Femenino , Humanos , Inmunohistoquímica , Leiomioma/irrigación sanguínea , Leiomioma/metabolismo , Persona de Mediana Edad , Estudios Retrospectivos , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Neoplasias Uterinas/irrigación sanguínea , Neoplasias Uterinas/metabolismoRESUMEN
Transverse vaginal septum is a residual vaginal plate composed of the Müllerian duct and urogenital sinus. Imperforate hymen results from failure of perforation of the membrane between the urogenital sinus and vaginal cavity. We report a rare case of concurrence of these two conditions. A 16-year-old girl had been treated with puncture several times for hematometra and hematocolpos from 13 years of age because of monthly occurrence of lower abdominal pain without menstrual bleeding and was referred to our hospital. Magnetic resonance imaging demonstrated hematometra, hematocolpos and expansion of the vaginal fornix. The imperforate hymen was incised and a slight adhesion at the lower vaginal cavity was detached. After that, a complete transverse vaginal septum, which was 5 mm thick, was identified. It was excised after ultrasonography-guided puncture. Although two cycles of menstrual bleeding took place, molimina recurred. Re-operation was performed 6 months after the first operation, and recurrence of adhesion in the lower vaginal cavity was identified. A silicon dilator was inserted, but she could not use it at home and instead used a tampon. Cyclic menstrual bleeding is observed 4 months after the second operation.
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Anomalías Múltiples/cirugía , Himen/anomalías , Trastornos de la Menstruación/cirugía , Conductos Paramesonéfricos/cirugía , Complicaciones Posoperatorias/etiología , Punciones/efectos adversos , Adherencias Tisulares/etiología , Vagina/cirugía , Dolor Abdominal/etiología , Dolor Abdominal/prevención & control , Anomalías Múltiples/fisiopatología , Adolescente , Amenorrea/etiología , Amenorrea/prevención & control , Anomalías Congénitas , Dilatación , Femenino , Hematocolpos/etiología , Hematocolpos/prevención & control , Hematómetra/etiología , Hematómetra/prevención & control , Humanos , Himen/fisiopatología , Himen/cirugía , Japón , Productos para la Higiene Menstrual , Trastornos de la Menstruación/fisiopatología , Conductos Paramesonéfricos/anomalías , Complicaciones Posoperatorias/prevención & control , Complicaciones Posoperatorias/cirugía , Recurrencia , Reoperación/efectos adversos , Adherencias Tisulares/prevención & control , Adherencias Tisulares/cirugía , Resultado del Tratamiento , Vagina/anomalíasRESUMEN
Cynaropicrin is a guaianolide sesquiterpene lactone with a 5-7-5 tricyclic skeleton, four exo-olefins, and two hydroxyl groups. Recently, it was found that the compound is a potent in vitro and in vivo inhibitor of the protozoan parasite Trypanosoma brucei, which causes human African trypanosomiasis (HAT; sleeping sickness). In this Letter, chemical derivatization of cynaropicrin and the structure-activity-relationship (SAR) study against T. brucei is described.
Asunto(s)
Lactonas/química , Lactonas/farmacología , Sesquiterpenos/química , Sesquiterpenos/farmacología , Tripanocidas/química , Tripanocidas/farmacología , Trypanosoma brucei brucei/efectos de los fármacos , Concentración 50 Inhibidora , Lactonas/síntesis química , Estructura Molecular , Sesquiterpenos/síntesis química , Relación Estructura-Actividad , Tripanocidas/síntesis químicaRESUMEN
We assess climate impacts of global warming using ongoing observations and paleoclimate data. We use Earth's measured energy imbalance, paleoclimate data, and simple representations of the global carbon cycle and temperature to define emission reductions needed to stabilize climate and avoid potentially disastrous impacts on today's young people, future generations, and nature. A cumulative industrial-era limit of â¼500 GtC fossil fuel emissions and 100 GtC storage in the biosphere and soil would keep climate close to the Holocene range to which humanity and other species are adapted. Cumulative emissions of â¼1000 GtC, sometimes associated with 2°C global warming, would spur "slow" feedbacks and eventual warming of 3-4°C with disastrous consequences. Rapid emissions reduction is required to restore Earth's energy balance and avoid ocean heat uptake that would practically guarantee irreversible effects. Continuation of high fossil fuel emissions, given current knowledge of the consequences, would be an act of extraordinary witting intergenerational injustice. Responsible policymaking requires a rising price on carbon emissions that would preclude emissions from most remaining coal and unconventional fossil fuels and phase down emissions from conventional fossil fuels.