1
|
Elevated phosphorylation of estrogen receptor α at serine-118 in ovarian endometrioma. F&S SCIENCE 2022; 3:401-409. [PMID: 35654737 DOI: 10.1016/j.xfss.2022.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/07/2022] [Accepted: 04/20/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To evaluate the phosphorylation of estrogen receptor α at serine-118 (phospho-ERα S118) in the endometrium, ovarian endometrioma, and deep infiltrating endometriosis (DIE). DESIGN Experimental study. SETTING University-affiliated hospital and academic research laboratory. PATIENT(S) Twenty-five patients underwent a hysterectomy, 18 patients underwent surgical removal of ovarian endometrioma, and 6 patients underwent DIE. INTERVENTION(S) Tissue samples were obtained from patients who underwent surgical procedures. MAIN OUTCOME MEASURE(S) Immunostaining for phospho-ERα S118, ERα, or phosphorylated p44/42 mitogen-activated protein kinase (phospho-p44/42 MAPK) was performed to evaluate the endometrium with or without endometriosis, ovarian endometrioma, and DIE. For in vitro analysis, endometrial epithelial cells (Ishikawa cells) were stimulated with estradiol (E2) or tumor necrosis factor alpha (TNFα), and the expression levels of phospho-ERα S118 and phospho-p44/42 MAPK were evaluated via Western blotting. RESULT(S) First, phospho-ERα S118 level was significantly higher in the glands and stroma of ovarian endometriosis samples than in those of endometrial and DIE samples. Second, colocalization of phospho-p44/42 MAPK and phospho-ERα S118 was observed in the glands of ovarian endometrioma. The proportions of cells strongly expressing phospho-p44/42 and phospho-ERα were 87% in phosphor-p44/42 MAPK-positive cells and 79% in phosphor-ERα-positive cells. Third, E2 stimulation significantly enhanced phospho-ERα S118 after 15 and 30 minutes in in vitro analysis using endometrial epithelial cells. Fourth, TNFα stimulation modestly but significantly enhanced phospho-ERα S118 after 15 and 30 minutes. Fifth, in Ishikawa cells, treatment with a p44/42 inhibitor (PD98059) significantly reduced phospho-ERα S118 by TNFα but not by E2. CONCLUSION(S) ERα-S118 phosphorylation was increased in ovarian endometriosis. Our findings may provide a new perspective for understanding the mechanism of increased ERα action in the pathophysiology of endometriosis.
Collapse
|
2
|
Long-term conservative management of symptomatic bladder endometriosis: A case series of 17 patients. Taiwan J Obstet Gynecol 2022; 61:606-611. [PMID: 35779908 DOI: 10.1016/j.tjog.2022.02.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/11/2022] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVES This study aimed to evaluate the course of long-term conservative management of bladder endometriosis (BE). MATERIALS AND METHODS We retrospectively reviewed 17 cases of BE conservatively managed without surgery in our facility. The following factors were analyzed: age, medical history, lesion size, symptoms, hormonal treatment, and follow-up outcomes. RESULTS In this study, 15 patients received hormonal therapy and 2 did not. Oral contraceptive (OC), dienogest (DNG), and gonadotropin-releasing hormone agonist (GnRHa) were administered as the first regimen in 7, 5, and 3 patients, respectively. Of the 7 patients, OC administration was effective in alleviating urinary symptoms in all but 2 patients. Of 3 patients who received GnRHa, 2 switched to OC and then DNG, and 1 patient discontinued the treatment because of adverse effects. Of 5 patients who received DNG, all experienced symptom relief. DNG, OC, and GnRHa administration were effective and tolerable in 9 of 10 patients (90.0%), in 5 of 9 patients (55.6%), and in 2 of 3 patients (66.7%), respectively. In particular, 3 patients completed DNG treatment until menopause. The size of the BE lesion significantly decreased after 3 months of DNG administration, and the reduction effect was maintained until 48 months thereafter. CONCLUSION This study proposed that hormonal therapy for BE is an effective option for those who are not planning to conceive or to undergo surgery. Specifically, DNG may be suitable for patients refusing surgery, considering the effectiveness and tolerance for long-term use.
Collapse
|
3
|
A survey of public attitudes toward uterus transplantation, surrogacy, and adoption in Japan. PLoS One 2019; 14:e0223571. [PMID: 31665149 PMCID: PMC6821076 DOI: 10.1371/journal.pone.0223571] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 09/24/2019] [Indexed: 12/14/2022] Open
Abstract
This study aimed to evaluate the attitudes of male and female members of the public toward uterus transplantation (UTx), surrogacy, and adoption in Japan via a web-based survey. One thousand six hundred participants were recruited with equal segregation of age (20s, 30s, 40s, and 50s) and gender. We assessed the association between ethical view and gender, age, infertility, and the knowledge level of UTx, using a questionnaire. The findings were as follows. First, 36.5% and 31.0% of respondents agreed that UTx and gestational surrogacy should be approved, respectively. Second, the respondents would potentially choose to receive UTx (34.4%), gestational surrogacy (31.9%), and adoption (40.3%), if they or their partners experienced absolute uterine factor infertility. Third, 10.1%, 5.8%, and 14.3% of the respondents chose UTx, gestational surrogacy, and adoption as the most favorable option, respectively. Fourth, if their daughters suffered from absolute uterine factor infertility, 32.3% of female respondents might want to be donors, and 36.7% of male respondents might ask their wives to be donors. These data were affected by age, gender, infertility, or the knowledge level of UTx. UTx was a more acceptable option than gestational surrogacy and adoption. The effects of gender, age, infertility, and the level of knowledge of UTx are important in understanding the attitude toward UTx. On the other hand, there were concerns about the safety of UTx for recipients, donors, and babies. It is important to continue to understand public attitudes to inform the development and safety of UTx, which will enhance the discussion on the ethical consensus on UTx.
Collapse
|
4
|
Clinical aspects and management of inguinal endometriosis: A case series of 20 patients. J Obstet Gynaecol Res 2019; 45:2029-2036. [PMID: 31381248 DOI: 10.1111/jog.14059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 06/23/2019] [Indexed: 12/22/2022]
Abstract
AIM This study aimed to describe the clinical presentation, diagnostic evaluation, and operative or medical management of inguinal endometriosis. METHODS In this study, we retrospectively reviewed 20 cases of inguinal endometriosis in our facility, particularly on the clinical characteristics, diagnosis, and surgical and medical treatment. RESULTS We retrospectively investigated the following items for each patient: age at diagnosis, surgical history, presence of extragenital endometriosis, symptoms, imaging modalities, surgical therapy, hormonal therapy, follow-up period, postoperative recurrence and time to recurrence. We identified 20 cases of inguinal endometriosis in our facility. First, 75% of the patients had right inguinal endometriosis. Second, T1-weighted or fat-saturated T1-weighted images showed hyperintensity in the lesions in 17 patients (17/18 patients, 94.4%). Third, in 5 of 6 patients who underwent surgical therapy, we performed radical surgery to excise the inguinal lesion including the round ligament. One patient had disease relapse. Fourth, in 6 of 7 cases, dienogest effectively improved pain without significant adverse effects, but oral contraceptive was effective in 1 of 4 patients without significant adverse effects. CONCLUSION We retrospectively reviewed 20 patients with inguinal endometriosis in our facility. We have shown that magnetic resonance imaging can be a useful imaging modality to obtain a specific diagnosis of this disease. In addition, inguinal endometriosis can be managed with radical surgery to resect lesions including the round ligament and with hormonal treatment. In particular, dienogest ameliorated symptoms, which can be an option for patients who do not want surgery.
Collapse
|
5
|
Computer vision for total laparoscopic hysterectomy. Asian J Endosc Surg 2019; 12:294-300. [PMID: 30066473 DOI: 10.1111/ases.12632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 06/06/2018] [Accepted: 06/24/2018] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Laparoscopic surgery is widely performed in various surgical fields, but this technique requires time for surgeons to master. However, at the same time, there are many advantages in visualizing the operative field through a camera. In other words, we can visualize what we cannot see with our own eyes by using augmented reality and computer vision. Therefore, we investigated the possibilities and usefulness of computer vision in total laparoscopic hysterectomy. METHODS This study was approved by the Mitsui Memorial Hospital ethics committee. Patients who underwent total laparoscopic hysterectomy at Mitsui Memorial Hospital from January 2015 to December 2015 were enrolled. We evaluated 19 cases in which total laparoscopic hysterectomy was performed by the same operator and assistant. We used the Open Source Computer Vision Library for computer vision analysis. The development platform used in this study was a computer operating on Mac OS X 10.11.3. RESULTS We created panoramic images by matching features with the AKAZE algorithm. Noise reduction methods improved haziness caused by using energy devices. By abstracting the color of the suture string, we succeeded in abstracting the suture string from movies. We could not achieve satisfactory results in detecting ureters, and we expect that creative ideas for ureter detection may arise from collaborations between surgeons and medical engineers. CONCLUSIONS Although this was a preliminary study, the results suggest the utility of computer vision in assisting laparoscopic surgery.
Collapse
|
6
|
Contralateral ovarian endometrioma recurrence after unilateral salpingo-oophorectomy. BMC WOMENS HEALTH 2019; 19:59. [PMID: 31046768 PMCID: PMC6498560 DOI: 10.1186/s12905-019-0760-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 04/22/2019] [Indexed: 11/17/2022]
Abstract
Background The recurrence rate after unilateral salpingo-oophorectomy (USO) for unilateral endometrioma has not been reported. We evaluated the rate of and risk factors for endometrioma recurrence after USO. Methods In this retrospective observational study, we enrolled 110 women (age, 35–45 years) who underwent laparoscopic USO (n = 50) or cystectomy (n = 60) for unilateral ovarian endometrioma from January 2010 through December 2012. We compared patients’ characteristics between patients who underwent USO and those who underwent cystectomy. We also compared patients with and without an endometrioma recurrence after USO using univariate and multivariate stepwise logistic regression models to identify recurrence risk factors. Endometrioma recurrence was defined as an ovarian cyst (> 2 cm) with features typical of an endometrioma identified by postoperative transvaginal sonography. Results Endometrioma recurred in 8 (16%) patients after USO (mean follow-up, 46.0 ± 12.9 months [range, 15–73]). The post-USO cumulative recurrence rates at 12, 24, 36, and 60 months were 8.0, 10.2, 12.7, and 24.7%, respectively (Kaplan-Meier analysis). In logistic regression analysis, a contralateral side adhesion score ≥ 4 was an independent risk factor for endometrioma recurrence after USO (odds ratio, 19.48, 95% confidence interval, 1.59–237.72). The post-USO cumulative recurrence rates at 12, 24, 36, and 57 months were 19.5, 24.1, 31.0, and 54.0%, respectively, in cases with contralateral side adhesion scores ≥4, and 0.0, 0.0, 0.0, and 5.9%, respectively, in cases with scores < 4 (log-rank test, P = 0.0023). Conclusions To our knowledge, this is the first report on the recurrence rate and risk factors associated with recurrence after USO. Endometrioma recurrence rates were 24.7% during the first 5 years after USO. The post-USO recurrence rate increased significantly in cases with contralateral side adhesions. Our findings could improve the planning of USO and patient selection for postoperative hormonal therapy.
Collapse
|
7
|
Exploration of assistive technology for uniform laparoscopic surgery. Asian J Endosc Surg 2018; 11:325-328. [PMID: 29457703 DOI: 10.1111/ases.12472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 01/17/2018] [Accepted: 01/21/2018] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Laparoscopic surgery is less invasive than open surgery and is now common in various medical fields. However, laparoscopic surgery is more difficult than open surgery and often requires additional time for the operator to achieve mastery. Therefore, we investigated the use of assistive technology for uniform laparoscopic surgery. METHODS We used the OpenCV2 library for augmented reality with an ArUco marker to detect and estimate forceps positioning. We used Sense HAT as the gyro sensor. The development platforms used were Mac OS X 10.11.3 and Raspberry Pi 3, model B. RESULTS By attaching the ArUco marker to the needle holder, we could draw a line vertically to the marker. When the needle was held, a cube could be imagined, and both the needle and lines could be used to determine the appropriate position. By attaching the gyro sensor to the camera, we could detect its angle of rotation. We obtained stabilized images by rotating the image by the detected degrees; this was possible for any camera position. CONCLUSIONS Assistive technology allowed us to obtain consecutive converted images in real time and may be readily applicable to clinical practice.
Collapse
|
8
|
Abstract
A three-year-old cat with lymphadenopathy, non-regenerative anaemia and marked leucocytosis (171.3 x 10(9) white blood cells/l) was diagnosed with monocytic leukaemia and treated with a combination of anticancer drugs. A number of mature and immature monocyte-like cells were detected in the peripheral blood and bone marrow; they proved to be monocytic cells by cytochemical examination and an analysis of their cell surface phenotype, indicating that the cat suffered from acute myeloid leukaemia, subclassified as monocytic leukaemia (M5). Treatment with cytarabine, doxorubicin, vincristine and prednisolone greatly reduced the number of blast cells in the cat's peripheral blood and bone marrow. The cat was in partial remission for 67 days and survived for 95 days after it was first examined.
Collapse
|
9
|
In vitro selective suppression of feline myeloid colony formation is attributable to molecularly cloned strain of feline leukemia virus with unique long terminal repeat. Res Vet Sci 2005; 78:151-4. [PMID: 15563922 DOI: 10.1016/j.rvsc.2004.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2004] [Indexed: 11/28/2022]
Abstract
Molecularly cloned feline leukemia virus (FeLV)-clone 33 (C-33), derived from a cat with acute myelocytic leukemia (AML), was examined to assess its relation to the pathogenesis of AML and myelodysplastic syndrome (MDS). To evaluate in vitro pathogenicity of FeLV C-33, bone marrow colony-forming assay was performed on marrow cells infected with FeLV C-33 or an FeLV subgroup A strain (61E, a molecularly cloned strain with minimal pathogenicity). The myeloid colony-forming activity of feline bone marrow mononuclear cells infected with FeLV C-33 was significantly lower than that of cells infected with 61E. This suggests that FeLV C-33 has myeloid lineage-specific pathogenicity for cats, and that FeLV C-33 infection is useful as an experimental model for investigating pathogenesis of MDS and AML.
Collapse
MESH Headings
- Animals
- Bone Marrow Cells/cytology
- Bone Marrow Cells/virology
- Cat Diseases/virology
- Cats
- Cloning, Molecular
- DNA, Viral/chemistry
- DNA, Viral/genetics
- Leukemia Virus, Feline/genetics
- Leukemia Virus, Feline/pathogenicity
- Leukemia, Myeloid, Acute/pathology
- Leukemia, Myeloid, Acute/veterinary
- Leukemia, Myeloid, Acute/virology
- Myelodysplastic Syndromes/veterinary
- Myelodysplastic Syndromes/virology
- Myeloid Progenitor Cells/cytology
- Myeloid Progenitor Cells/virology
- Polymerase Chain Reaction/veterinary
- Retroviridae Infections/veterinary
- Retroviridae Infections/virology
- Terminal Repeat Sequences
- Tumor Virus Infections/veterinary
- Tumor Virus Infections/virology
Collapse
|
10
|
|
11
|
The change of immunosuppressive effect of X-irradiation after transplant period for aortic transplantation in rat. Transplant Proc 2002; 34:2884-6. [PMID: 12431644 DOI: 10.1016/s0041-1345(02)03546-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
12
|
Development and application of a combined atomic force microscopy-nanoindentation system with a silicon tip and a diamond indenter. ACTA ACUST UNITED AC 2002. [DOI: 10.1080/01418610208235724] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
13
|
Abstract
BACKGROUND Immunosuppression involves the nature of the immunosuppressive agents and individual differences in patient factors. We investigated whether the effect of mycophenolate mofetil (MMF) is measurable using an in vitro measure of immunocompetence and related its effects to cyclosporine (CsA) in vitro. METHODS Liver or kidney transplant recipients receiving prednisone; CsA or tacrolimus; and MMF, azathioprine (AZA), or neither, were studied. Immunocompetence was assessed by one-way mixed lymphocyte culture using patients' peripheral blood leukocytes (PBL) and three validated stimulators. The effect of immunosuppressive agents added in vitro on normal PBL stimulation by Staphylococcus enterotoxin B was determined by the carboxyfluorescein diacetate succinimidyl ester measurement of division. RESULTS Patients receiving MMF had an average immunocompetence level of 12+/-23, compared with 39.7+/-65 and 25.5+/-42 for those receiving AZA or neither AZA nor MMF, respectively. Thus, there was an approximately 80% suppression of the response in the MMF group. Assessment of normal cell division revealed that CsA allowed multiple cell generations but suppressed the numbers of cells in each, whereas MMF blocked proliferation into subsequent generations. Addition of clinically relevant levels of mycophenolic acid, the active agent for MMF, added to more moderate levels of CsA, was required to achieve greater than 80% suppression, consistent with the degree of immunocompetence depression measured in patients. CONCLUSIONS These data provide the novel finding that the effect of MMF treatment on patients is measurable in their PBL as decreased immunocompetence in vitro. The effect of MMF on normal PBL approximates the 80% inhibition that we found in patients. Moreover, the effect of MMF on cell division provides a rationale for the superior effectiveness of regimens including MMF.
Collapse
|
14
|
|
15
|
Immunocompetence assay for net effect of combined immunosuppression. Transplant Proc 2001; 33:2350-1. [PMID: 11377556 DOI: 10.1016/s0041-1345(01)02018-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
16
|
Decreased effect of immunosuppression on immunocompetence in African--Americans after kidney and liver transplantation. Clin Transplant 2001; 15:111-5. [PMID: 11264637 DOI: 10.1034/j.1399-0012.2001.150207.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Several studies indicate that the poorer outcomes for African--Americans after transplantation may be due to decreased effectiveness of immunosuppressive agents. Using an in vitro test of immunocompetence (IMC), we measured the effects of immunosuppression on African-American, compared with Caucasian, kidney or liver transplantation recipients. The IMC result was the highest of three mixed lymphocyte culture responses using validated stimulator cell pools. A total of 293 tests were done in Caucasians and 144 in African--Americans. Overall, the IMC for African--Americans was 38, compared with 19 for Caucasians (p<0.01). This decreased effect of immunosuppression (higher IMC) was the same for liver as for kidney transplant recipients, occurred at the 2--3-yr interval, and was largely in patients of tacrolimus (FK506), with a strong but not significant trend in cyclosporine (CYA) recipients. The two groups were on the same nominal immunosuppression and FK506 and CYA levels were not different. We conclude that African-Americans retain more immune responsiveness on equivalent dose immunosuppression, notable particularly in years 2--3 after transplantation when earlier graft loss occurs in this group.
Collapse
|
17
|
Tsutsugamushi disease in Kanagawa Prefecture, Japan: clinical report of two cases and survey of other incidences in 1998. THE TOKAI JOURNAL OF EXPERIMENTAL AND CLINICAL MEDICINE 2001; 26:19-24. [PMID: 11592298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Tsutsugamushi disease is characterized by the early appearance of a black crust at the bitten area and the subsequent development of macular or macropapular rush on the whole body with high fever. While treatment with tetracycline derivatives and chloramphenicols is effective, delayed diagnosis or inappropriate treatment will lead to fatality. In this report, we describe two typical cases of tsutsugamushi disease and discuss other incidences in Kanagawa Prefecture, Japan, in 1998. One of the present two patients was diagnosed to be a case of the new type by Kawasaki strain of Rickettsia tsutsugamushi, while responsible strain was not identified for the other case. Since the disease is spreading widely even to suburban areas, we emphasize the need to consider the possible diagnosis of tsutsugamushi disease in patients with generalized eruption and high fever.
Collapse
|
18
|
Unexpected strong immunosuppressive effect of X-ray irradiation on acute rejection of rat aortic allografts. Transplant Proc 2000; 32:2063-4. [PMID: 11120067 DOI: 10.1016/s0041-1345(00)01559-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
MESH Headings
- Anastomosis, Surgical
- Animals
- Aorta, Abdominal/pathology
- Aorta, Abdominal/surgery
- Aorta, Abdominal/transplantation
- Cyclosporine/pharmacology
- Graft Rejection/prevention & control
- Graft Rejection/radiotherapy
- Graft Survival/drug effects
- Graft Survival/radiation effects
- Male
- Muscle, Smooth, Vascular/pathology
- Muscle, Smooth, Vascular/surgery
- Muscle, Smooth, Vascular/transplantation
- Rats
- Rats, Inbred Strains
- Transplantation, Homologous/immunology
- Transplantation, Homologous/methods
- Transplantation, Homologous/pathology
- Ultraviolet Rays
- X-Rays
Collapse
|
19
|
Serum nitric oxide level as a prognostic parameter for chronic rejection after renal transplantation. Transplant Proc 2000; 32:1789-90. [PMID: 11119938 DOI: 10.1016/s0041-1345(00)01372-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
20
|
A case of renal transplantation received from a living donor with second-generation anti-hepatitis C virus antibody positive into an anti-hepatitis C virus antibody negative recipient. Transplant Proc 2000; 32:1593-4. [PMID: 11119851 DOI: 10.1016/s0041-1345(00)01565-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
21
|
Relationship between plasma levels of vascular endothelial growth factor and serum levels of interleukin-12 in patients with colorectal cancer. Anticancer Res 2000; 20:4097-102. [PMID: 11131678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
BACKGROUND Vascular endothelial growth factor (VEGF) is thought to be the most potent angiogenic factor in the numerous malignant tumors and a prognostic indicator for cancer patients. Interleukin 12 (IL-12) is a heterodimeric cytokine that has potent anti-tumor and anti-metastatic activities. Recently, it has been suggested that IL-12 regulates VEGF in a murine breast cancer model. MATERIALS AND METHODS Blood from 26 patients with colorectal cancer was obtained prior to surgery. Plasma levels of VEGF and serum levels of IL-12 were assessed using the quantitative sandwich enzyme immunoassay technique. We investigated the preoperative relationships between plasma levels of VEGF, serum levels of IL-12 and clinicopathological factors in patients with colorectal cancer. RESULTS Although not statistically significantly, high plasma levels of VEGF and low serum levels of IL-12 tended to occur with more advanced colorectal cancer. Plasma levels of VEGF in patients who had circumferential involvement of the tumor greater than 1/2 were only significantly increased. The preoperative relationship between plasma levels of VEGF and serum levels of IL-12 tended to be negatively correlated. CONCLUSION These results suggest that high plasma levels of IL-12 or low serum levels of IL-12 may be observed in more advanced colorectal cancer patients. Thus, these patients may require additional immunochemotherapy after surgery. IL-12 may regulate VEGF in the patients diagnosed with colorectal cancer.
Collapse
|
22
|
Intermediate state during the crystal transition in aspartame, studied with thermal analysis, solid-state NMR, and molecular dynamics simulation. Chem Pharm Bull (Tokyo) 2000; 48:708-15. [PMID: 10823710 DOI: 10.1248/cpb.48.708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aspartame (L-alpha-aspartyl-L-phenylalanine methyl ester) is a dipeptide sweetener about 200 times as sweet as sugar. It exists in crystal forms such as IA, IB, IIA, and IIB, which differ in crystal structure and in the degree of hydration. Among these, IIA is the most stable crystal form, and its crystal structure has been well determined (Hatada et al., J. Am. Chem. Soc., 107, 4279-4282 (1985)). To elucidate the structural factors of thermal stability in the IIA form of aspartame and to examine the physical process in the crystal transformation between the IIA and IIB forms, we performed a thermal analysis and solid-state NMR measurements. We found that a quasi-stable intermediate state exists in the transformation, and it has the same crystal lattice as the usual IIA form, despite the dehydration from 1/2 mol to 1/3 mol per 1 mol of aspartame. The results of the energy component analysis and the molecular dynamics simulation suggest that the entropic effect promotes the generation of the intermediate state, which is presumably caused by the evaporation of the water of crystallization and the increase of molecular motion in aspartame. Thus, the thermal stability of the IIA form is attributable to a structural property, i.e., the crystal lattice itself is retained during the above dehydration. Moreover, the molecular dynamics simulations suggest that the aspartame molecules have two kinds of conformational flexibility in the intermediate state.
Collapse
|
23
|
Abstract
BACKGROUND Homologous blood transfusion (HBT) has the risk of an immunosuppressive effect and may adversely affect the prognosis of patients with carcinomas. Autologous blood transfusion (ABT) has not yet become a standard procedure in gastroenteric cancer surgery. We investigated the usefulness and problems of ABT combined with the use of recombinant human erythropoietin (rh-EPO). METHODS An evaluation of autologous blood transfusion (ABT) combined with recombinant human erythropoietin (rh-EPO) treatment was conducted in 46 patients with hepatocellular carcinoma undergoing hepatectomy. Preoperative autologous blood donation (ABD) was accomplished for 25 of the 46 patients. The preoperative changes in hemoglobin and hematocrit in relation to route of administration of erythropoietin were studied. In addition, intraoperative blood requirements and the postoperative complications for patients who predonated were compared with those of patients who underwent surgery without autologous predonation. RESULTS The proportion of patients not requiring additional homologous blood transfusions (HBT) during operation was significantly higher in the ABD group than in the non-ABD group (88% versus 38%). The incidence of postoperative complications was significantly higher in patients receiving HBT than in nontransfused patients and in those receiving ABT. CONCLUSIONS Preoperative autologous blood donation in combination with rh-EPO therapy markedly reduced the requirement for homologous blood transfusion during surgery in patients with hepatocellular carcinoma having hepatectomy.
Collapse
|
24
|
Evaluation of mechanical properties in nanometer scale using AFM-based nanoindentation tester. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s0965-9773(99)00297-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
25
|
Development of a more practical ex vivo rabbit lung transplantation model. Transplant Proc 1998; 30:3372-3. [PMID: 9838487 DOI: 10.1016/s0041-1345(98)01066-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
26
|
|
27
|
|
28
|
|
29
|
|
30
|
[Combined spinal-epidural anesthesia for intra-abdominal gynecological surgeries]. MASUI. THE JAPANESE JOURNAL OF ANESTHESIOLOGY 1996; 45:1153-1159. [PMID: 8905955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Forty-five patients scheduled for intra-abdominal gynecological surgeries, ranging in age from 30 to 60 years, were anesthetized with combined spinal-epidural (CSE) method using combined spinal-epidural needles inserted at the L2-3 interspace. Ten minutes after intrathecal administration of 0.4% isobaric tetracaine solution (2.5 ml) the upper level of analgesia was examined by pin prick method and the patients were divided into the group A (N = 7; anesthetic level > or = Th7), B (N = 7; Th8-10) and C (N = 31; Th11-L1) according to their anesthetic levels. Target anesthetic level (Th4-7) was obtained in group B by peridural administration of 2% mepivacaine in a dose of 5 ml and the surgery was performed. However, in group C, mepivacaine 7 ml was insufficient to obtain the target anesthetic level and additional mepivacaine was necessary for the surgery. In group A, no mepivacaine was used in the first hour of the surgery. In all patients, except one in group C, in whom general anesthesia was used after insufficient segmental analgesia, anesthesia was maintained by the CSE technique. We concluded that adequate anesthetic level for the intra-abdominal surgery can be obtained by intrathecal isobaric tetracaine administration combined with peridural mepivacaine of a dose calculated according to the anesthetic level ten minutes after the spinal block.
Collapse
|
31
|
Diagnostic value of ratio of renal arterio-venous velocity for graft rejection in renal allografts. Transplant Proc 1996; 28:1598-9. [PMID: 8658801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
32
|
Utilization of warm ischemic livers from non-heart beating donors by portable cardiopulmonary bypass and heterotopic transplantation. Transplant Proc 1996; 28:1878-9. [PMID: 8658927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
33
|
Transplantation of pediatric low-weight kidneys into adults from a non-heart-beating donor. Transplant Proc 1996; 28:1535-6. [PMID: 8658775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
34
|
|
35
|
Serum immunosuppressive acidic protein as an immune parameter following renal transplantation. Transplant Proc 1994; 26:2157-8. [PMID: 8066707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
36
|
Si K x-ray-absorption spectra of single-crystal Si and amorphous SiO2. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:18257-18260. [PMID: 10008469 DOI: 10.1103/physrevb.48.18257] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
37
|
Development of a reliable method for procurement of warm ischemic kidneys from non-heart-beating donors. Transplant Proc 1992; 24:1327-8. [PMID: 1496575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
38
|
The interaction of elderberry (Sambucus sieboldiana) bark lectin and sialyloligosaccharides as detected by 1H-NMR. J Biochem 1992; 112:143-6. [PMID: 1429503 DOI: 10.1093/oxfordjournals.jbchem.a123854] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The interaction of Japanese elderberry bark lectin (Sambucus sieboldiana agglutinin, SSA) with carbohydrate was investigated by 1H-NMR. When a low affinity ligand, methyl beta-D-galactoside (beta MeGal), was mixed with SSA, each proton signal of beta MeGal was broadened. The signal of H-4 was markedly broad, while those of H-1, OCH3, and H-2 of beta MeGal were rather sharp. The specific broadening of Gal H-4 was more evident when SSA was mixed with methyl-beta-D-lactoside (beta MeLac). Position-dependent signal broadening suggests that beta MeGal binds to SSA such that H-4 is closely involved in the contact region, but H-1, OCH3, and H-2 are far from this region. In the case of a high affinity ligand, Neu5Ac(alpha 2-6)Gal(beta 1-4)Glc(= N6L), ligand signals of the SSA-N6L mixture did not change at all. But when a small amount of N6L was added to the SSA-beta MeGal mixture, the broad signals of bound beta MeGal became dramatically sharp. This indicates that the added N6L molecules liberated the bound beta MeGal from SSA. On the other hand, the sialyllactose with the alpha(2-3)-linkage(= N3L) could not substitute for bound beta MeGal because of its lower affinity. This demonstrates that the competitive binding experiment between two ligands is a useful technique to detect the interaction of lectins with high affinity ligands which could not be observed directly by NMR signal broadening and/or chemical shift change.
Collapse
|
39
|
Cerebral ischemia induces transient intracellular redistribution and intranuclear translocation of the raf proto-oncogene product in hippocampal pyramidal cells. Exp Brain Res 1991; 84:403-10. [PMID: 2065747 DOI: 10.1007/bf00231462] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In this report we describe changes in the intracellular redistribution of raf serine/threonine protein kinase (product of the raf proto-oncogene family) in hippocampal neurons following cerebral ischemia in Mongolian gerbils. For immunohistochemical localization studies polyclonal antisera specific for each of the A, B, and Raf-1 isotypes of raf, as well as a pan-raf antisera, were employed. Of these, only sera recognizing B-raf, as well as the general v-raf (raised against the conserved C-terminal region) were positive, indicating that B-raf is the major isotype in this neuronal region. Three different ischemic models were used (repeated 3 times for two min and single 5 or 15 min occlusions, of the common carotid arteries) to demonstrate that ischemic insult causes redistribution of raf protein kinase into the cell nucleus of hippocampal neurons. Increased amounts of raf protein in the nuclei of pyramidal cells following ischemia was confirmed by Western blot analysis of isolated nuclear fractionations. Moreover, an elevation in the level of nuclear raf protein also was detected in the contralateral (i.e. non-occluded hemisphere) neurons of CA1 and CA3 subfields 4 days after the ischemic insult indicating a possible transsynaptic increase in the amount of raf protein along with redistribution. The intranuclear translocation of the immunoreactive material started from the perinucleolar rim and with time extended throughout the nucleus. Enhanced levels and altered redistribution of the raf polypeptide in the nuclei of pyramidal cells of the CA3 subfield appears to be reversible and returns to the normal level 12 days following the ischemic insult.(ABSTRACT TRUNCATED AT 250 WORDS)
Collapse
|
40
|
Prophylactic use of deoxyspergualin in a quadruple immunosuppressive protocol in renal transplantation. Transplant Proc 1991; 23:1096-8. [PMID: 1989158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
41
|
|
42
|
Transplantation of livers from non-heart-beating donors is possible by core cooling technique. Transplant Proc 1989; 21:3519. [PMID: 2662504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
43
|
Liver transplantation from non-heart-beating donors by core cooling technique. Transplant Proc 1989; 21:1206-8. [PMID: 2652398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
44
|
A new approach to kidney procurement from non-heart-beating donors: core cooling on cardiopulmonary bypass. Transplant Proc 1989; 21:1203-5. [PMID: 2652397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
45
|
Ultrasonic real time guidance for subclavian venipuncture. SURGERY, GYNECOLOGY & OBSTETRICS 1988; 167:239-42. [PMID: 3413654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
To minimize the complications arising from the subclavian venipuncture, ultrasonically (2-D Doppler) guided puncture was tried upon ten patients. Venipuncture was successful in nine patients whose subclavian vein was visualized by 2-D Doppler. In one patient, the subclavian vein had shifted cephalad, so the subclavian venipuncture was abandoned. Ultrasonically guided venipuncture is thought to be safer and a more sure method for subclavian venipuncture.
Collapse
|
46
|
The characterization of various crystalline forms of aspartame (a dipeptide sweetener). Acta Crystallogr A 1987. [DOI: 10.1107/s0108767387084058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
47
|
Crystallization and preliminary X-ray studies of human recombinant interleukin-2. J Biol Chem 1987; 262:4766-9. [PMID: 3494011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Two different forms of crystals (potentially) suitable for x-ray structure analysis were obtained for recombinant human interleukin-2 (IL-2) using ammonium sulfate as a precipitant in the pH range of 6.3-7.3 (in the case of hexagonal bipyramidal crystals) and 4.5-5.5 (in the case of plate crystals). The hexagonal bipyramidal crystal belongs to a hexagonal space group P6(2)22 or P6(4)22 with a = b = 105.8 A and c = 122.2 A. The crystal diffracts up to 3.4 A resolution and contains 2 or 3 IL-2 molecules in an asymmetric unit. The plate crystal belongs to an orthorhombic space group P2(1)2(1)2 with a = 47.9 A, b = 79.6 A, and c = 31.9 A. The crystal diffracts up to 2.5 A resolution and contains only 1 IL-2 molecule in an asymmetric unit. These facts reconfirmed crystallographically the high homogeneity of the present preparation of human recombinant IL-2.
Collapse
|
48
|
|
49
|
Nuclear magnetic resonance study on the interaction of aclacinomycin-A with a deoxyribo-hexanucleotide pentaphosphate d(CCTAGG)2 in aqueous solution. Chem Pharm Bull (Tokyo) 1986; 34:4494-9. [PMID: 3470156 DOI: 10.1248/cpb.34.4494] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
50
|
Anomalous temperature dependence of the phosphorus-31 nuclear magnetic resonance chemical shift in d(CCGG) and d(CCTAGG) at the junction of the pyrimidine stack followed by the purine stack. Chem Pharm Bull (Tokyo) 1986; 34:3987-93. [PMID: 3829144 DOI: 10.1248/cpb.34.3987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|