Publications by authors named "Iwadare J"

Background: Since the human papillomavirus vaccines do not eliminate preexisting infections, nonsurgical alternative approaches to cervical intraepithelial neoplasia (CIN) have been required. We previously reported that FOXP4 (forkhead box transcription factor P4) promoted proliferation and inhibited squamous differentiation of CIN1-derived W12 cells. Since it was reported that FOXP expressions were regulated by the androgen/androgen receptor (AR) complex and AR was expressed on the CIN lesions, in this study we examined the effects of androgen on CIN progression.

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We report a case of synchronous high-grade cervical intraepithelial neoplasia (CIN) and metastatic squamous cell carcinomas (SCCs) of unknown primary in the rectum. A 74-year-old woman was diagnosed with CIN3 by biopsy of the uterine cervix. Magnetic resonance imaging showed two masses in the outer rectal wall.

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Background: Aberrant expression of P-cadherin has been reported in various cancers, and has been attracting attention as a target for cancer treatment. Ovarian cancer, the leading cause of death among gynecologic malignancies, is classified into four histological subtypes: serous, mucinous, endometrioid, and clear cell, and each has distinct biological behavior. Although a negative survival impact in serous ovarian cancer patients and some functional role in peritoneal dissemination have been reported, differences of P-cadherin expression in histological subtypes and the proportion and distribution of positive cells remain to be investigated.

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Background: Endoscopic surgery for infrarenal para-aortic lymphadenectomy has been widely accepted. Two major approaches, "transperitoneal" and "extraperitoneal", are generally used; however, they have several disadvantages. A "transperitoneal" approach to the left para-aortic region is usually indirect, often performed after wide extension of the right para-aortic region.

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Objectives: To evaluate the clinical performance of novel detection kits for 14 high-risk human papillomavirus (hrHPV) types with the BD Onclarity HPV Assay (Onclarity; Becton Dickinson, Sparks, MD).

Methods: Two cervical specimens from 144 women were obtained and placed in BD SurePath Collection Vials. The first specimen was used for cervical cytology and digene HC2 High-Risk HPV DNA Test (HC2; Qiagen, Germantown, MD), and the second specimen was used for Onclarity and Roche Cobas 4800 HPV (Cobas; Roche Molecular Systems, Pleasanton, CA).

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Circulating tumor cells (CTC) are newly discovered biomarkers of cancers. Although many systems detect CTC, a gold standard has not yet been established. We analyzed CTC in uterine cervical cancer patients using an advanced version of conditionally replicative adenovirus targeting telomerase-positive cells, which was enabled to infect coxsackievirus-adenovirus receptor-negative cells and to reduce false-positive signals in myeloid cells.

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Article Synopsis
  • - Persistent cloaca is a rare condition where the urethra, vagina, and rectum share a single opening, which can lead to fetal hydrometrocolpos if fluids back up in the common channel.
  • - A 29-year-old woman gave birth via elective cesarean at 37 weeks due to a fetal abdominal mass, and the newborn exhibited respiratory distress and an imperforate anus.
  • - After diagnosing persistent cloaca and draining the fluid buildup, the infant's breathing improved significantly, with imaging revealing some of the largest findings linked to this condition.
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Gastric metastasis from ovarian cancer is exceptionally rare and generally occurs in advanced stages. A 71-year-old woman presented with a solitary gastric submucosal mass 8 years after the diagnosis of a stage IA ovarian serous adenocarcinoma. Endoscopy showed a tumor covered with normal gastric mucosa.

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Positron emission tomography (PET) with fluorodeoxyglucose F18 ( F-FDG) is useful for detecting malignancies, but benign lesions occasionally have false-positive F-FDG uptake. Here, we report the cases of five postmenopausal women with solid ovarian tumors suspected to be ovarian cancer on magnetic resonance imaging and F-FDG uptake. Mean age of the five patients was 57 years (range, 53-65 years).

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Article Synopsis
  • Tamoxifen is an anti-estrogen drug used to treat breast cancer, and its use in premenopausal women in Japan is increasing, prompting a study on its effects on ovarian function.
  • The study analyzed 11 women with high serum estradiol levels during tamoxifen therapy, focusing on their serum Follicular Stimulating Hormone (FSH) levels and follicular development.
  • Results showed that tamoxifen could stimulate ovarian function even after two years of treatment, with observed large follicles indicating potential adverse effects on the hormone regulation system.
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Purpose: Because of the rarity of diagnosis, the clinical implication of enterocele remains unclear. This study was designed to clarify the characteristic symptoms and the role of surgical treatment for enterocele.

Methods: We reviewed a defecography database prospectively maintained from 1998 to 2004.

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Purpose: This study was designed to evaluate the clinical and physiologic outcomes after transvaginal rectocele repair.

Methods: Between June 2000 and January 2003, 30 females (mean age, 62 (range, 45-78) years) with a symptomatic large rectocele (>3 cm) underwent transvaginal rectocele repair (anterior levatorplasty). Six months after surgery, a physiologic evaluation was performed by using defecography (depth of rectocele) and anorectal manometry (maximum resting pressure, maximum squeeze pressure, rectal threshold, and maximum tolerable volume).

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Background And Aims: Patients with prolapsing internal hemorrhoids were treated with a novel sclerosing agent (OC-108), and the results were compared with surgery of ligation and excision.

Patients And Methods: This study included 20 years or older patients with prolapsing internal hemorrhoids who visited ten medical institutions in Japan from October 2000 to October 2002. Investigation on surgery was also performed.

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Purpose: This study was designed to evaluate the safety efficacy, and impact on quality of life of the perineal puborectalis sling operation for fecal incontinence.

Methods: Since August 2001, we performed the perineal puborectalis sling operation on eight patients with idiopathic fecal incontinence. A specially designed polyester mesh sling was introduced along the puborectalis muscle, from a posterior perianal incision, running to a small suprapubic incision.

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Although mucosal plication for rectal prolapse, known as the Gant-Miwa procedure, is described in some English textbooks, it has been infrequently performed in the West. However, this procedure has been used and developed in conjunction with anal encircling in Japan since the 1960s and is still considered to play a major role in the treatment of rectal prolapse. Certain technical details have been found necessary to ensure the success of the procedure, especially in the technique of anal encircling.

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Purpose: This study was designed to evaluate long-term results and quality-of-life outcomes after the muscle-filling procedure for posterior transsphincteric fistulas.

Methods: A questionnaire was mailed to 207 patients who had been treated by the muscle-filling procedure for posterior transsphincteric fistulas with cryptoglandular origin at the Social Health Insurance Hospital during a ten-year period. One hundred fifty-one patients who returned their questionnaires were included in this retrospective study.

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To identify the molecular mechanism which primarily plays a role in the pathogenesis of Crohn's disease (CD) without prior hypothesis, differential display method was employed to detect differentially expressed genes between the inflamed and uninflamed colonic samples from one patient with CD. The mRNA levels of these genes were subsequently semi-quantitated in affected and unaffected tissues from six patients using reverse transcriptase polymerase chain reaction (RT-PCR). Six genes including long form FLICE inhibitory protein (FLIP(L)) were found to be consistently overexpressed in the inflamed colonic CD tissues.

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After the articles by Eisenhammer, Parks, Hanley, and Goligher and the classification system established by Sumikoshi, surgeons in Japan became very active in creating and modifying new sphincter-preserving surgical procedures for low intersphincteric and ischiorectal fistulas. This article reviews the literature, summarizes each procedure, identifies the transitions, and discusses recurrence rates, cures, and subsequent variations. Japanese surgeons favor sphincter-preserving techniques for low intersphincteric fistulas that involve partial or complete coring out of fistula tracts.

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We report a case of refractory ulcerative colitis treated with tacrolimus. The patient was a 73-year-old woman with a 45-year history of ulcerative colitis. An attack unresponsive to intravenous corticosteroid therapy occurred when she was age 73.

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Purpose: During transsphincteric fistula surgery, laying open the entire fistula track can cause grave damage. Thus, a surgical procedure that excises the primary abscess only is preferable. However, the primary abscess of a transsphincteric fistula is located in the postanal space.

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Under the current conditions that etiologies of Crohn's Disease (CD) are not detected and then no radical therapy existed, it is necessary that the CD patients can be medically managed by not only medical doctors but also other co-medical staffs such as nurses, dietitians, social workers and ET (Enterostomal Therapist) nurses for their cure & care therapy. There are some different therapeutic steps; 1) Nutritional Therapy, 2) Drug Therapy, 3) Surgical Therapy and 4) Psychological (Mental) Support. In Japan, Nutritional Therapy headed by Elemental Enteral Nutrition is recommended as for 1st choice standard therapy for CD patients, who are mainly very young and are required to have themselves acceptable for long-term therapeutic controls.

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