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1.
Cureus ; 16(1): e52296, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38357044

RESUMO

Gynecologic malignancies sometimes affect women before menopause. Aggressive treatments, such as surgery, chemotherapy, and/or radiotherapy, often lead to premature menopause. Hormone replacement therapy (HRT), typically used for managing menopause-associated health issues, may be limited by tumor sensitivity to estrogen. Here, we present a case of a 37-year-old woman seeking fertility, who was diagnosed with a serous borderline ovarian tumor (BOT). Fertility-preserving surgery and in-vitro fertilization resulted in a twin pregnancy. During a postpartum amenorrheic period, there was no recurrence. However, she experienced a rapid recurrence of the disease following the resumption of menstruation and underwent radical surgery. This rapid recurrence after menstruation resumed suggests potential estrogen sensitivity. Close postoperative monitoring has been ongoing without HRT.

2.
BMC Womens Health ; 22(1): 388, 2022 09 23.
Artigo em Inglês | MEDLINE | ID: mdl-36138425

RESUMO

BACKGROUND: Acute abdomen comprises several emergencies. Hemoperitoneum associated with uterine fibroids, which can present as acute abdominal pain, is rare and difficult to diagnose. Especially, spontaneous hemorrhage from the rupture of the superficial vessels overlying a uterine fibroid is extremely rare, and its diagnosis and management have not been established. CASE PRESENTATION: We report a case of a 55-year-old woman who presented at our hospital with acute abdomen. After performing a computed tomography scan, we conducted a laparoscopic examination and diagnosed hemoperitoneum of ambiguous origin. We treated the patient surgically, performing a laparoscopic myomectomy to remove the origin of the hemorrhage. The patient recovered well. CONCLUSIONS: We report a case of hemoperitoneum of ambiguous origin that was diagnosed laparoscopically and treated by laparoscopic myomectomy to remove the origin of the hemorrhage. Surgeons should rapidly diagnose and manage acute abdominal pain in women with a history of uterine fibroids to prevent severe morbidity or even mortality. Therefore, laparoscopic surgery is recommended in patients with stable hemodynamics.


Assuntos
Abdome Agudo , Laparoscopia , Leiomioma , Miomectomia Uterina , Neoplasias Uterinas , Abdome Agudo/complicações , Abdome Agudo/cirurgia , Dor Abdominal/etiologia , Feminino , Hemoperitônio/diagnóstico por imagem , Hemoperitônio/etiologia , Hemoperitônio/cirurgia , Humanos , Laparoscopia/métodos , Leiomioma/complicações , Leiomioma/diagnóstico por imagem , Leiomioma/cirurgia , Pessoa de Meia-Idade , Ruptura Espontânea/complicações , Ruptura Espontânea/cirurgia , Miomectomia Uterina/métodos , Neoplasias Uterinas/complicações , Neoplasias Uterinas/cirurgia
3.
Cureus ; 12(6): e8869, 2020 Jun 27.
Artigo em Inglês | MEDLINE | ID: mdl-32754406

RESUMO

A case of cervical neuroendocrine carcinoma (NEC) of the uterine cervix (NECUC) was presented. After total hysterectomy with bilateral salpingo-oophorectomy and adjuvant chemotherapy, a left renal tumor and a pancreatic lesion developed and were both diagnosed on pathological examination as metastases from NEC. In addition, a brainstem metastasis causing neurologic signs developed. The brain lesion was treated by stereotactic radiotherapy (SRT) and the renal and pancreatic lesions by stereotactic body radiotherapy (SBRT). Despite control of the renal and pancreatic lesions, multiple small lung metastases developed later. Recurrence and newly developed brain metastases were treated by repeat stereotactic radiosurgery (SRS)/SRT successfully. Chemotherapy was continued and controlled the lung metastases until three and a half years after the initial operation of the uterus.

4.
Biomed Rep ; 8(2): 198-204, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29435281

RESUMO

Menopause is associated with increased oxidative stress, which serves a role, in part, in the pathogenesis of postmenopausal bone loss. Fruits and vegetables are rich in antioxidative nutrients and phytochemicals. Berries are a natural source of anthocyanins, and their intake may improve bone health. The aim of the present study was to determine the effect of an anthocyanin-rich bilberry extract (VME) on bone metabolism in an ovariectomized (Ovx) rat. Female Sprague-Dawley rats (12 weeks old) were randomly divided into the following four groups: Baseline, Sham, Ovx and Ovx+VME (n=8-12 rats per group). Rats in the Baseline group were sacrificed immediately, while those in the other groups were subjected to either sham operation (Sham) or bilateral Ovx (Ovx and Ovx+VME). Rats in the Ovx+VME group were administered VME daily at a dose of 500 mg/kg body weight. At 8 weeks after surgery, bone mass and bone histomorphometry were evaluated. The femur bone mineral density (BMD) in the Ovx group was significantly lower than that in the Sham group (P<0.01). Supplementation of VME in the Ovx rats did not result in an increase in BMD. Histomorphometric analyses revealed that Ovx resulted in decreased measures of bone volume and trabecular number and increased measures of osteoid volume, mineralizing surface and bone formation rates (all P<0.01), whereas VME had no significant effects on these parameters. The present findings indicate that VME did not alter bone metabolism in Ovx rats, suggesting that consumption of VME may not be helpful in preventing postmenopausal bone loss.

5.
Gene ; 532(1): 41-5, 2013 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-24013081

RESUMO

The hearing loss caused by GJB2 mutations is usually congenital in onset, moderate to profound in degree, and non-progressive. The objective of this study was to study genotype/phenotype correlations and to document 14 children with biallelic GJB2 mutations who passed newborn hearing screening (NHS). Genetic testing for GJB2 mutations by direct sequencing was performed on 924 individuals (810 families) with hearing loss, and 204 patients (175 families) were found to carry biallelic GJB2 mutations. NHS results were obtained through medical records. A total of 18 pathological mutations were identified, which were subclassified as eight inactivating and 10 non-inactivating mutations. p.I128M and p.H73Y were identified as novel missense GJB2 mutations. Of the 14 children with biallelic GJB2 mutations who passed NHS, eight were compound heterozygotes and 3 were homozygous for the c.235delC mutation in GJB2, and the other three combinations of non-c.235delC mutations identified were p.Y136X-p.G45E/p.V37I heterozygous, c.512ins4/p.R143W heterozygous, and p.V37I/p.R143W heterozygous. These 14 cases demonstrate that the current NHS does not identify all infants with biallelic GJB2 mutations. They suggest that the frequency of non-penetrance at birth is approximately 6.9% or higher in DFNB1 patients and provide further evidence that GJB2 hearing loss may not always be congenital in onset.


Assuntos
Conexinas/genética , Perda Auditiva/diagnóstico , Perda Auditiva/genética , Mutação , Triagem Neonatal/métodos , Sequência de Aminoácidos , Pré-Escolar , Conexina 26 , Estudos de Associação Genética , Heterozigoto , Humanos , Lactente , Recém-Nascido , Dados de Sequência Molecular
6.
Photosynth Res ; 98(1-3): 589-608, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18937045

RESUMO

Photosystem II is vulnerable to various abiotic stresses such as strong visible light and heat. Under both stresses, the damage seems to be triggered by reactive oxygen species, and the most critical damage occurs in the reaction center-binding D1 protein. Recent progress has been made in identifying the protease involved in the degradation of the photo- or heat-damaged D1 protein, the ATP-dependent metalloprotease FtsH. Another important result has been the discovery that the damaged D1 protein aggregates with nearby polypeptides such as the D2 protein and the antenna chlorophyll-binding protein CP43. The degradation and aggregation of the D1 protein occur simultaneously, but the relationship between the two is not known. We suggest that phosphorylation and dephosphorylation of the D1 protein, as well as the binding of the extrinsic PsbO protein to Photosystem II, play regulatory roles in directing the damaged D1 protein to the two alternative pathways.


Assuntos
Adaptação Fisiológica , Temperatura Alta , Luz , Complexo de Proteína do Fotossistema II/metabolismo , Estresse Fisiológico , Peptídeo Hidrolases/metabolismo , Fosforilação , Espécies Reativas de Oxigênio/metabolismo , Tilacoides/ultraestrutura
7.
J Biol Chem ; 283(42): 28380-91, 2008 Oct 17.
Artigo em Inglês | MEDLINE | ID: mdl-18664569

RESUMO

Moderate heat stress (40 degrees C for 30 min) on spinach thylakoid membranes induced cleavage of the reaction center-binding D1 protein of photosystem II, aggregation of the D1 protein with the neighboring polypeptides D2 and CP43, and release of three extrinsic proteins, PsbO, -P, and -Q. These heat-induced events were suppressed under anaerobic conditions or by the addition of sodium ascorbate, a general scavenger of reactive oxygen species. In accordance with this, singlet oxygen and hydroxyl radicals were detected in spinach photosystem II membranes incubated at 40 degrees C for 30 min with electron paramagnetic resonance spin-trapping spectroscopy. The moderate heat stress also induced significant lipid peroxidation under aerobic conditions. We suggest that the reactive oxygen species are generated by heat-induced inactivation of a water-oxidizing manganese complex and through lipid peroxidation. Although occurring in the dark, the damages caused by the moderate heat stress to photosystem II are quite similar to those induced by excessive illumination where reactive oxygen species are involved.


Assuntos
Complexo de Proteína do Fotossistema II/fisiologia , Espécies Reativas de Oxigênio , Espectroscopia de Ressonância de Spin Eletrônica , Temperatura Alta , Peróxido de Hidrogênio/química , Luz , Peroxidação de Lipídeos , Modelos Biológicos , Oxigênio/química , Proteínas/química , Spinacia oleracea/metabolismo , Temperatura , Tilacoides/metabolismo , Fatores de Tempo , Água/química
8.
J Biol Chem ; 281(31): 21660-21669, 2006 Aug 04.
Artigo em Inglês | MEDLINE | ID: mdl-16735503

RESUMO

When spinach thylakoids were subjected to moderate heat stress (40 degrees C for 30 min), oxygen evolution was inhibited, and cleavage of the reaction center-binding protein D1 of photosystem II took place, producing 23-kDa N-terminal fragments. The D1 cleavage was greatly facilitated by the addition of 0.15 mM ZnCl2 and 1 mM ATP and was completely inhibited by 1 mM EDTA, indicating the participation of an ATP-dependent metalloprotease(s) in the D1 cleavage. Herbicides 3-(3,4-dichlorophenyl)-1,1-dimethyl urea, bromoxynil, and ioxynil, all of which bind to the Q(B) site, inhibited the D1 cleavage, suggesting that the DE-loop of the D1 protein is the heat-sensitive cleavage site. We solubilized the protease by treating the thylakoids with 2 M KSCN and detected a protease activity in the supernatant by gelatin activity gel electrophoresis in the 70-80-kDa region. The antibodies against tobacco FtsH and Arabidopsis FtsH2 reacted with a 70-80-kDa band of the KSCN-solubilized fraction, which suggests the presence of FtsH in the fraction. In accordance with this finding, we identified the homolog to Arabidopsis FtsH8 in the 70-80-kDa region by matrix-assisted laser desorption ionization time-of-flight mass analysis of the thylakoids. The KSCN-solubilized fraction was successively reconstituted with thylakoids to show heat-induced cleavage of the D1 protein and production of the D1 fragment. These results strongly suggest that an FtsH protease(s) is involved in the primary cleavage of the D1 protein under moderate heat stress.


Assuntos
Proteases Dependentes de ATP/metabolismo , Proteínas de Arabidopsis/metabolismo , Temperatura Alta , Proteínas de Membrana/metabolismo , Complexo de Proteína do Fotossistema II/metabolismo , Tilacoides/química , Trifosfato de Adenosina/metabolismo , Fragmentos de Peptídeos/biossíntese , Proteínas de Plantas/metabolismo , Espectrometria de Massas por Ionização e Dessorção a Laser Assistida por Matriz , Spinacia oleracea , Tilacoides/metabolismo , Zinco/farmacologia
9.
Arch Gerontol Geriatr ; 42(2): 175-89, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16219375

RESUMO

The present study was conducted to characterize the lifestyles and health status of non-participants and to investigate whether diminished higher-level functional capacity may cause selection bias in non-compulsory mass health screening for the elderly. Using a self-administered questionnaire for evaluating the Tokyo Metropolitan Institute of Gerontology Index of Competence (TMIG Index of Competence) which consists of three sublevels, namely, instrumental self-maintenance, intellectual activity and social role, we conducted a survey of 1543 (mean age, 64.9+/-12.5 years, 677 males and 866 females) out of all the 1701 individuals over the age of 40 residing in a village where mass health screening is conducted annually. The mean TMIG Index of Competence score was the highest in Group V (composed of 434 individuals who participated in the mass health screening conducted by the village), followed, in that order, by the score in Group W (composed of 531 individuals who had undergone a health checkup organized at their workplaces or by their family physicians, but not the one conducted by the village, during the previous year) and that in Group N (composed of 578 individuals who had not undergone any health checkup during the previous year). Group N showed a significantly lower mean TMIG Index of Competence score than Groups V and W. In regard to the scores for the sublevels of the index, Group N had a significantly lower percentage of subjects, both men and women, with perfect scores than Group V for all the sublevels, and also a significantly lower percentage of subjects with a perfect score for the intellectual activity than Group W. However, there were no significant differences in the percentages of subjects habituated to exercise, drinking or smoking among the three groups. Thus, special attention may need to be paid to selection bias in mass health screenings caused by differences in the higher-level functional capacity.


Assuntos
Atividades Cotidianas , Envelhecimento/fisiologia , Nível de Saúde , Estilo de Vida , Competência Mental , Adulto , Idoso , Envelhecimento/psicologia , Pressão Sanguínea , Índice de Massa Corporal , Feminino , Avaliação Geriátrica , Humanos , Inteligência , Relações Interpessoais , Entrevistas como Assunto , Japão , Masculino , Programas de Rastreamento , Pessoa de Meia-Idade , Qualidade de Vida , Autoimagem , Inquéritos e Questionários
10.
Photosynth Res ; 84(1-3): 29-33, 2005 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-16049751

RESUMO

When photodamaged under excessive light, the D1 protein is digested and removed from Photosystem (PS) II to facilitate turnover of the protein. In vitro studies have shown that part of the photodamaged D1 protein forms aggregates with surrounding polypeptides before being digested by a protease(s) in the stroma [Yamamoto Y (2001) Plant Cell Physiol 42: 121-128]. The aim of this study was to examine whether light-induced aggregation of the D1 protein also occurs in vivo. The following results were obtained: (1) PS II activity in spinach leaves was significantly inhibited by weak illumination (light intensity, 20-100 microE m-2 s-1), as monitored by chlorophyll fluorescence Fv/Fm, when the leaves were kept at higher temperatures (35-40 degrees C); (2) aggregation of the D1 protein, as well as cleavage of the protein, was detected in thylakoids isolated from spinach leaves that had been subjected to heat/light stress; (3) aggregates of the D1 protein disappeared after incubation of the leaves at 25 degrees C in the dark or under illumination with weak light. Since it is dependent on the presence of oxygen, aggregation of the D1 protein is probably induced by reactive oxygen species produced in thylakoids upon illumination at elevated temperatures. Consistent with this notion, singlet oxygen production in thylakoid samples under illumination was shown to be stimulated significantly at higher temperatures.


Assuntos
Luz , Complexo de Proteína do Fotossistema II/metabolismo , Complexo de Proteína do Fotossistema II/efeitos da radiação , Proteínas de Plantas/química , Proteínas de Plantas/metabolismo , Folhas de Planta/metabolismo , Folhas de Planta/efeitos da radiação , Desnaturação Proteica , Oxigênio Singlete/metabolismo , Spinacia oleracea/metabolismo , Spinacia oleracea/efeitos da radiação , Tilacoides/metabolismo , Tilacoides/efeitos da radiação
11.
Nihon Koshu Eisei Zasshi ; 49(4): 332-43, 2002 Apr.
Artigo em Japonês | MEDLINE | ID: mdl-12043179

RESUMO

OBJECTIVES: Health education for residents is now common, but only a few studies of its effects have been made. The purpose of this study was to investigate the effects of nutrition education for residents on intake of lipid-related nutrients. METHODS: A total of 79 females (40-64 years) who underwent a health examination for residents in a town, Nara Prefecture and were found to have total serum cholesterol levels between 220 mg/dl and 300 mg/dl were divided into two groups. In the first group, nutrition education was performed during the first 24 weeks and no education was performed during the second 24 weeks as the self-control period. In the second group, no education was given during the first 24 weeks as the waiting period but was performed during the second 24 weeks. During the education period, dietary intervention for individual subjects was performed 3 times at intervals of 8 weeks by trained dietitians. The intake of nutrients was estimated by the food frequency questionnaire developed by Ueshima and Okayama, and changes in the intake of nutrients adjusted for total energy were used for evaluation of the effects of the education. RESULTS: In the first group of 42 subjects, three discontinued during the education period and two during the self-control period, and in the second group of the 37 subjects, six discontinued during the waiting period and three during the education period. At the end of the education period, for the total of 67 subjects (39 and 28 in the first and second groups, respectively), the total energy adjusted intake of lipid, cholesterol and saturated fatty acid were significantly lower and the PS ratio was significantly higher than in the second group during the waiting period. During the self-control period after the education, the adjusted intake of lipid-related nutrients remained unchanged in the 37 subjects of the first group who had been given the nutrition education in the first 24 weeks, and it was significantly lower at the end of the 48-week test period than at the baseline examination. The percentage of the subjects showing a desirable intake pattern of major lipid-related nutrients increased significantly after the education period. CONCLUSIONS: These results indicate that the intake of lipid-related nutrients can be decreased by educating individual subjects about nutrition and the effects are maintained for at least 24 weeks.


Assuntos
Dieta , Ingestão de Energia , Lipídeos/administração & dosagem , Ciências da Nutrição/educação , Adulto , Gorduras na Dieta/administração & dosagem , Feminino , Humanos , Pessoa de Meia-Idade
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