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Fujiwara T, Hoshino T, Ooshima T, Hamada S. Differential and Quantitative Analyses of mRNA Expression of Glucosyltransferases from Streptococcus mutans MT8148. J Dent Res 2017. [DOI: 10.1177/0810109] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Streptococcus mutans produces three glucosyltransferases, coded by gtfB, gtfC, and gtfD, whose cooperative action is essential for sucrose-dependent cellular adhesion. This cellular adhesion plays an important role in the formation of dental plaque and the initiation of dental caries. Since they bear genetic similarities and are large in size, differentiation of their gene expression has been difficult, and little is known about the dynamic process of gtf expression. Using a real-time reverse-transcription/polymerase chain-reaction, we determined the expression of each gtf. Under various conditions, the relative levels of transcription were gtfB > gtfD > gtfC. Sucrose enhanced gtfD expression, whereas it reduced that of gtfB and gtfC, suggesting the presence of independent promoters. Quantitative analyses demonstrated coincidence between the ratio of expression of each gtf and the ratio previously identified as optimal for sucrose-dependent adhesion in vitro, suggesting that S. mutans produces GTF at an optimal ratio to adhere to the tooth surface.
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Kushima I, Aleksic B, Nakatochi M, Shimamura T, Shiino T, Yoshimi A, Kimura H, Takasaki Y, Wang C, Xing J, Ishizuka K, Oya-Ito T, Nakamura Y, Arioka Y, Maeda T, Yamamoto M, Yoshida M, Noma H, Hamada S, Morikawa M, Uno Y, Okada T, Iidaka T, Iritani S, Yamamoto T, Miyashita M, Kobori A, Arai M, Itokawa M, Cheng MC, Chuang YA, Chen CH, Suzuki M, Takahashi T, Hashimoto R, Yamamori H, Yasuda Y, Watanabe Y, Nunokawa A, Someya T, Ikeda M, Toyota T, Yoshikawa T, Numata S, Ohmori T, Kunimoto S, Mori D, Iwata N, Ozaki N. High-resolution copy number variation analysis of schizophrenia in Japan. Mol Psychiatry 2017; 22:430-440. [PMID: 27240532 DOI: 10.1038/mp.2016.88] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Revised: 04/18/2016] [Accepted: 04/20/2016] [Indexed: 12/30/2022]
Abstract
Recent schizophrenia (SCZ) studies have reported an increased burden of de novo copy number variants (CNVs) and identified specific high-risk CNVs, although with variable phenotype expressivity. However, the pathogenesis of SCZ has not been fully elucidated. Using array comparative genomic hybridization, we performed a high-resolution genome-wide CNV analysis on a mainly (92%) Japanese population (1699 SCZ cases and 824 controls) and identified 7066 rare CNVs, 70.0% of which were small (<100 kb). Clinically significant CNVs were significantly more frequent in cases than in controls (odds ratio=3.04, P=9.3 × 10-9, 9.0% of cases). We confirmed a significant association of X-chromosome aneuploidies with SCZ and identified 11 de novo CNVs (e.g., MBD5 deletion) in cases. In patients with clinically significant CNVs, 41.7% had a history of congenital/developmental phenotypes, and the rate of treatment resistance was significantly higher (odds ratio=2.79, P=0.0036). We found more severe clinical manifestations in patients with two clinically significant CNVs. Gene set analysis replicated previous findings (e.g., synapse, calcium signaling) and identified novel biological pathways including oxidative stress response, genomic integrity, kinase and small GTPase signaling. Furthermore, involvement of multiple SCZ candidate genes and biological pathways in the pathogenesis of SCZ was suggested in established SCZ-associated CNV loci. Our study shows the high genetic heterogeneity of SCZ and its clinical features and raises the possibility that genomic instability is involved in its pathogenesis, which may be related to the increased burden of de novo CNVs and variable expressivity of CNVs.
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Frick M, Hamada S, Kirschfink A, Mühler E, Kerst G, Marx N, Hövels-Gürich H. Dobutamin-Stress-Kardio-MR (CMR) und Spiroergometrie (CPX) bei jungen Erwachsenen nach arterieller Switch Operation im Neugeborenenalter bei Transposition der großen Arterien. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Tamesada M, Kawabata S, Fujiwara T, Hamada S. Synergistic Effects of Streptococcal Glucosyltransferases on Adhesive Biofilm Formation. J Dent Res 2016; 83:874-9. [PMID: 15505239 DOI: 10.1177/154405910408301110] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Glucosyltransferases (GTF)-I and GTF-SI of Streptococcus mutans synthesize water-insoluble and both water-soluble and -insoluble glucans, respectively, and play essential roles in the sucrose-dependent adhesion of the organism to tooth surfaces. To examine the interactions of different GTFs on artificial biofilm formed by S. mutans and other oral streptococci, we generated GTF-I- and GTF-SI-hyperproducing isogenic mutant strains. Transformant B42-21, which hyperexpressed GTF-SI, exhibited firm adhesion in the presence of sucrose, whereas transformant B42-10, which hyperexpressed GTF-I, failed to exhibit firm adhesion. Furthermore, co-culture of transformant B42-21 with water-soluble glucan-synthesizing Streptococcus sanguinis yielded firm adhesion, while the addition of dextran T10 to B42-21 growing culture had no effect on adhesion. These findings suggest that GTF-SI has a strong effect on sucrose-dependent adhesion and is essential for biofilm formation on smooth surfaces, in cooperation with water-soluble glucans synthesized de novo by oral streptococci that inherently lack cell adhesion ability.
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Okamoto S, Terao Y, Kaminishi H, Hamada S, Kawabata S. Inflammatory Immune Responses by Water-insoluble α-glucans. J Dent Res 2016; 86:242-8. [PMID: 17314256 DOI: 10.1177/154405910708600309] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Water-insoluble α-glucans are synthesized from sucrose by glucosyltransferase-I of mutans streptococci and play an important role in the development of dental plaque. Several types of β-glucans in fungal cell wall components and water-soluble α-glucans from Streptococcus mutans are known to modulate innate immunity. In the present study, we investigated whether water-insoluble α-glucans also induced inflammatory innate immune responses. Our results showed that water-insoluble α-glucans synthesized by Streptococcus sobrinus activated mouse peritoneal exudate macrophages to produce pro-inflammatory cytokines. The immunological responses were not due to contamination by sucrose, water-soluble α-glucan, lipopolysaccharide, or peptidoglycan. Furthermore, human monocytes stimulated by water-insoluble α-glucans produced TNF-α and IL-8, while human polymorphonuclear cells were activated by water-insoluble α-glucans, resulting in chemotaxis and hydrogen peroxide production. The results demonstrated that water-soluble α-glucans modulate macrophage- and granulocyte-induced inflammatory immune responses, and suggest that inflammation induced by those α-glucans is associated with the development of periodontal diseases.
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Ikezoe J, Sone S, Morimoto S, Takashima S, Arisawa J, Hamada S, Nakahara K, Kojiro N, Ito M, Kozuka T. Computed Tomography Reveals Atypical Localization of Benign Mediastinal Tumors. Acta Radiol 2016. [DOI: 10.1177/028418518903000211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Computed tomographic appearances of 147 surgically proven mediastinal tumors (113 benign and 34 malignant lesions) were evaluated paying special attention to their localization or extension. Ten of the 113 benign lesions (9%) showed atypical or unique localization or extension, and were divided into three groups. In the first group, two lymphangiomas and one bronchogenic cyst spread over both the precardiovascular and the retrocardiovascular compartments, mimicking a malignant lesion. In the second group, the single cases of thymic hypertrophy, thymic cyst, schwannoma, and pericardial cyst were located atypically in the retrocardiovascular compartment. In the last group, two esophageal leiomyomas and one esophageal duplication showed upward and downward longitudinal extension beyond the azygos arch and the aortic arch.
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Askour M, Hamada S, Ouidan Y, Hassam B, Benzekri L. P 38 : Vitiligo et Pathologies auto-immunes de la thyroide. Ann Dermatol Venereol 2016. [DOI: 10.1016/s0151-9638(16)30213-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Togashi Y, Nakamura Y, Tomida S, Hayashi H, de Velasco M, Sakai K, Fujita Y, Hamada S, Nishio K. 329P Afatinib activity against head-and-neck or esophageal squamous cell carcinoma: Significance of activating oncogenic HER4 mutations in head-and-neck squamous cell carcinoma. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv527.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mitsuyoshi A, Hamada S, Tachibana T, Momono T, Aoyama H, Kondo Y, Inoguchi K, Yokoyama D, Nakau M, Suzaki S, Okabe H, Yanagibashi K. Pathogenic mechanisms of intestinal pneumatosis and portal venous gas: should patients with these conditions be operated immediately? Surg Case Rep 2015; 1:104. [PMID: 26943428 PMCID: PMC4607681 DOI: 10.1186/s40792-015-0104-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 10/01/2015] [Indexed: 02/03/2023] Open
Abstract
We aimed to histologically observe portal venous gas (PVG)-causing intestinal pneumatosis (IP) and evaluate pathogenic mechanisms and therapeutic strategies, including decisions on whether emergency surgery should be performed. Autopsy was performed in two cases of nonocclusive mesenteric ischemia (NOMI). We directly histologically observed the pathogenic mechanisms of IP caused by gas-producing bacteria and IP considered to be caused by mechanical damage to the intestinal mucosa. IP can be classified hypothetically into the following types according to pathogenesis: (1) infection, (2) rupture (damage) of the intestinal mucosa + increased intestinal intraluminal pressure, and (3) mixed type. In cases of IP caused by gas-producing bacteria or IP associated with intestinal wall damage extending beyond the mucosa to the deep muscular layer, emergency surgery should be considered. However, it is highly possible that patients who test negative for infection with gas-producing bacteria whose intestinal wall damage remains only in the mucosa can be conservatively treated.
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Hamada S, Gulliford M. 53QUALITY OF CARE IN VERY OLD PATIENTS WITH TYPE 2 DIABETES MELLITUS: DISPARITIES BETWEEN PATIENTS MANAGED WITH LIFE STYLE INTERVENTIONS ONLY AND THOSE TREATED WITH ANTIDIABETIC MEDICATIONS. Age Ageing 2015. [DOI: 10.1093/ageing/afv110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hirayama K, Masui K, Hamada A, Shichiri Y, Masuzawa N, Hamada S. Evaluation of Intravesical Prostatic Protrusion as a Predictor of Dutasteride-Resistant Lower Urinary Tract Symptoms/Benign Prostatic Enlargement With a High Likelihood of Surgical Intervention. Urology 2015. [DOI: 10.1016/j.urology.2015.05.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Konishi E, Nakashima Y, Mano M, Tomita Y, Nagasaki I, Kubo T, Araki N, Haga H, Toguchida J, Ueda T, Sakuma T, Imahori M, Morii E, Yoshikawa H, Tsukamoto Y, Futani H, Wakasa K, Hoshi M, Hamada S, Takeshita H, Inoue T, Aono M, Kawabata K, Murata H, Katsura K, Urata Y, Ueda H, Yanagisawa A. Primary central chondrosarcoma of long bone, limb girdle and trunk: Analysis of 174 cases by numerical scoring on histology. Pathol Int 2015; 65:468-75. [PMID: 26126783 PMCID: PMC5557088 DOI: 10.1111/pin.12324] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Accepted: 06/01/2015] [Indexed: 11/29/2022]
Abstract
The aims of this study were: (i) to elucidate clinicopathological characteristics of pcCHS of long bones (L), limb girdles (LG) and trunk (T) in Japan; (ii) to investigate predictive pathological findings for outcome of pcCHS of L, LG and T, objectively; and (iii) to elucidate a discrepancy of grade between biopsy and resected specimens. Clinicopathological profiles of 174 pcCHS (79 male, 95 female), of L, LG, and T were retrieved. For each case, a numerical score was given to 18 pathological findings. The average age was 50.5 years (15-80 years). Frequently involved sites were femur, humerus, pelvis and rib. The 5-year and 10-year disease-specific survival (DSS) rates [follow-up: 1-258 months (average 65.5)] were 87.0% and 80.4%, respectively. By Cox hazards analysis on pathological findings, age, sex and location, histologically higher grade and older age were unfavorable predictors, and calcification was a favorable predictor in DSS. The histological grade of resected specimen was higher than that of biopsy in 37.7% (26/69 cases). In conclusion, higher histological grade and older age were predictors for poor, but calcification was for good prognosis. Because there was a discrepancy in grade between biopsy and resected specimens, comprehensive evaluation is necessary before definitive operation for pcCHS.
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Litwin A, Kalantzis G, Drimtzias E, Hamada S, Chang B, Malhotra R. Nonsurgical treatment of congenital ichthyosis cicatricial ectropion and eyelid retraction using Restylane hyaluronic acid. Br J Dermatol 2015; 173:601-3. [PMID: 25639983 DOI: 10.1111/bjd.13710] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Arakaki T, Hasegawa J, Nakamura M, Hamada S, Muramoto M, Takita H, Ichizuka K, Sekizawa A. Prediction of early- and late-onset pregnancy-induced hypertension using placental volume on three-dimensional ultrasound and uterine artery Doppler. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2015; 45:539-543. [PMID: 25042564 DOI: 10.1002/uog.14633] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 05/21/2014] [Accepted: 07/07/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVES To determine whether uterine artery (UtA) Doppler findings and three-dimensional (3D) ultrasound measurement of placental volume during the first trimester allowed prediction of early- and late-onset pregnancy-induced hypertension (early PIH and late PIH). METHODS Subjects with singleton pregnancy who underwent an ultrasound scan at 11-13 weeks' gestation and delivered between 2011 and 2013 were enrolled prospectively into the study. The UtA Doppler indices and placental volume on 3D ultrasound at 11-13 weeks' gestation in cases that developed early PIH (< 34 weeks) or PIH later in pregnancy (≥ 34 weeks) were compared with values in unaffected pregnancies. RESULTS Ten cases of early PIH, 67 cases of late PIH and 1285 unaffected pregnancies were analyzed. The UtA pulsatility index (PI) was higher in cases of early PIH than that in unaffected pregnancies (median, 2.35 vs. 1.79; P = 0.043) but did not differ between cases of late PIH and unaffected pregnancies. Placental volume was smaller in cases of early PIH than that in unaffected pregnancies (median, 43 cm3 vs. 62 cm(3) ; P = 0.003) but did not differ between cases of late PIH and unaffected pregnancies. The area under the receiver-operating characteristics curve for the prediction of early PIH, by combining UtA-PI and placental volume, was 0.832 (95% CI, 0.742-0.921), with this combination providing a detection rate for early PIH of 67.5% for a 5% false-positive rate. CONCLUSIONS High UtA-PI and small placental volume were observed more often in cases of early PIH compared with unaffected pregnancies, but not in cases of late PIH. These results may indicate that there are differences in pathophysiology between early PIH and late PIH.
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Hirji N, Sykakis E, Lam FC, Petrarca R, Hamada S, Lake D. Corneal collagen crosslinking for keratoconus or corneal ectasia without epithelial debridement. Eye (Lond) 2015; 29:764-8. [PMID: 25853446 DOI: 10.1038/eye.2015.23] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 01/16/2015] [Indexed: 11/09/2022] Open
Abstract
PURPOSE Corneal collagen crosslinking (CXL) is a relatively new technique to reduce the progression of keratoconus. The technique can be performed with or without complete debridement of the corneal epithelium. We describe a novel intermediate technique involving mechanical disruption of the epithelium, and evaluate its safety and efficacy. METHODS The case notes of 128 eyes with progressive keratoconus or iatrogenic corneal ectasia who had undergone CXL using the epithelial disruption technique were retrospectively reviewed. Thin corneas were treated with hypotonic riboflavin. All others were treated with an isotonic solution. Note was made of preoperative and postoperative parameters, including uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA), refraction, endothelial cell count, and corneal tomography. Occurrence of procedure-related complications was recorded. Statistical analyses were performed using the paired sample t-test and Wilcoxon signed-rank test, with a level of P<0.05 being accepted as statistically significant. RESULTS At 12 months, 41.8% of patients treated with isotonic riboflavin had improved UCVA and 29.7% had improved BSCVA. Only 13.4% lost lines of UCVA and 14.9% lost BSCVA. Of the patients treated with hypotonic riboflavin, at 12 months, 75% demonstrated stability of BSCVA and 25% had stable Kmax. In addition, 25% showed improved visual acuity at 12 months, and 58.3% showed regression of their Kmax. Our rate of short-term complications was comparable to studies using complete epithelial removal. CONCLUSIONS CXL with epithelial disruption is a safe and effective treatment for keratoconus or iatrogenic corneal ectasia, and may be better tolerated by patients than the epithelium-off technique.
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Hamada S. Surgical treatment with hyperbaric oxygen in the management of bisphosphonate-related osteonecrosis of jaw. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Okuno K, Sato K, Arisaka T, Hosohama K, Gotoh M, Taga H, Sasao Y, Hamada S. The effect of oral appliances that advanced the mandible forward and limited mouth opening in patients with obstructive sleep apnea: A systematic review and meta-analysis of randomised controlled trials. J Oral Rehabil 2014; 41:542-54. [DOI: 10.1111/joor.12162] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2014] [Indexed: 11/28/2022]
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Gauss T, Hamada S, Jurcisin I, Dahmani S, Boudaoud L, Mantz J, Paugam-Burtz C. Limits of agreement between measures obtained from standard laboratory and the point-of-care device Hemochron Signature Elite(R) during acute haemorrhage. Br J Anaesth 2013; 112:514-20. [PMID: 24335551 DOI: 10.1093/bja/aet384] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Rapid diagnosis of coagulopathy in the bleeding patient using point-of-care (POC) devices would be ideal. The Hemochron Signature Elite(®) (HC(®)) is a POC device that determines international normalized ratio (INR) and activated partial thromboplastin time (aPTT). The aim of the study was to evaluate the agreement for INR and aPTT between the HC(®) and standard laboratory values in acute haemorrhage. METHODS This was a single-centre observational prospective study including patients with acute haemorrhage. Laboratory INR and aPTT were compared with simultaneous measurements performed with the HC(®). The diagnostic performance of HC(®) was determined; bias and limits of agreement were calculated according to the method of Bland and Altman. RESULTS Seventy-two pairs of measurements from 39 patients were analysed. The bias between the INR-HC(®) and aPTT-HC(®) measurements and the central laboratory were 0.02 and -1.13, respectively. The Spearman's correlation coefficients for the INR-HC(®)/INR-lab and the aPTT-HC(®)/aPTT-lab were 0.68 and -0.29, respectively. Twenty-seven per cent of INR-HC(®) values and 89% of the aPTT-HC(®) values exceeded the predefined limits of agreement. The INR-HC(®) measurement identified patients with a central laboratory INR >1.5 with a sensitivity, specificity, and positive and negative predictive values of 83%, 70%, 76%, and 77%, respectively. CONCLUSIONS The results showed a lack of agreement between the INR-HC(®) and the aPTT-HC(®) measurements and the standard laboratory in the context of acute haemorrhage. The INR-HC(®) showed moderate performance as a decision-making tool to detect coagulopathy in the context of acute haemorrhage.
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Harrois A, Hamada S, Laplace C, Duranteau J, Vigué B. The initial management of severe trauma patients at hospital admission. ACTA ACUST UNITED AC 2013; 32:483-91. [PMID: 23910065 DOI: 10.1016/j.annfar.2013.07.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The initial management of trauma patient is a critical period aiming at: stabilizing the vital functions; following a rigorous injury assessment; defining a therapeutic strategy. This management has to be organized to minimize loss of time that would be deleterious for the patients outcome. Thus, before patient arrival, the trauma team alert should lead to the initiation of care procedures adapted to the announced severity of the patient. Moreover, each individual should know its role in advance and the team should be managed by only one individual (the trauma leader) to avoid conflicts of decision. A rapid trauma injury assessment aims not only at guiding resuscitation (chest drainage, pelvic contention, to define the mean arterial pressure goal) but also to decide a critical intervention in case of hemodynamic instability (laparotomy, thoracotomy, arterial embolisation). This initial assessment includes a chest and a pelvic X-ray, abdominal ultrasound (extended to the lung) and transcranial Doppler (TCD). The whole body scanner with administration of intravenous contrast material is the cornerstone of the injury assessment but can be done for patients stabilized after the initial resuscitation.
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Sano T, Hamada S, Haitani T, Nakashima M, Kajita Y, Shichiri Y. Lung metastasis of ta bladder cancer: a case report and literature review. Korean J Urol 2013; 54:271-3. [PMID: 23614067 PMCID: PMC3630349 DOI: 10.4111/kju.2013.54.4.271] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Accepted: 12/29/2011] [Indexed: 11/24/2022] Open
Abstract
A 66-year-old man with a history of multiple transurethral resections for recurrent bladder tumors, staged as Ta according to the International Union Against Cancer staging guidelines, presented with a complaint of dry cough. A round nodule with a diameter of 7.5 cm was detected in the lung by chest computed tomography, and a video-assisted thoracoscopic lobectomy was performed. Pulmonary metastasis of recurrent bladder cancer was diagnosed by immunohistochemistry staining for the urothelium-specific protein uroplakin Ia. Subsequently, 2 cycles of systemic chemotherapy were administered. Two and a half years after treatment, no recurrence of pulmonary lesions has been detected. A combination of complete resection of pulmonary lesions and systemic chemotherapy may result in a good prognosis for patients with non-muscle-invasive bladder cancer.
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Benhiba H, Hamada S, Guerouaz N, Saidi A, Senouci K, Hassam B. [Pemphigus vulgaris: an unusual clinical presentation]. Ann Dermatol Venereol 2013; 140:116-9. [PMID: 23395493 DOI: 10.1016/j.annder.2012.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 10/10/2012] [Accepted: 11/13/2012] [Indexed: 11/26/2022]
Abstract
BACKGROUND Pemphigus vulgaris is a bullous auto-immune disease affecting the skin and mucosa. It is characterised by acantholysis that results in the formation of intraepithelial bullous lesions. Herein we report a case distinguished by its unusual clinical presentation. PATIENTS AND METHODS A 45-year-old man, a chronic smoker, consulted for hyperkeratotic lesions of the toes on the right foot present for 5 months. Examination revealed a violet colour of the toes associated with localised yellowish keratoderma on the sole of the foot and impaired toe nails, as well as impairment on the nails of the first, third and fourth fingers on the right hand. In addition, two hyperkeratotic plaques with crusts were noted on the patient's forehead. Histological examination of a biopsy sample taken from the nail bed of the fourth toe on the right foot showed suprabasal acantholysis with a characteristic tombstone appearance. Direct immunofluorescence confirmed the diagnosis of pemphigus. Oral corticosteroid therapy was initiated consisting of prednisone 1.5mg/kg per day. Improvement of the nail lesions and subsidence of the lesions on the patient's forehead occurred after three months of treatment. DISCUSSION During the course of pemphigus, the nail findings most commonly reported in the literature are paronychia, onychomadesis and onycholysis. However, these signs are generally seen in patients with known pemphigus vulgaris and only rarely indicate bullous disease. The case we report illustrates a special situation in which pemphigus vulgaris was revealed by unusual skin and nail lesions.
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Hamada S, Benhiba H, Benzekri L, Senouci K, Hassam B. Lésions cutanées en miroir révélant une tuberculose végétante. Ann Dermatol Venereol 2013; 140:67-8. [DOI: 10.1016/j.annder.2012.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 07/15/2012] [Accepted: 07/26/2012] [Indexed: 10/27/2022]
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Benzekri L, Gauthier Y, Hamada S, Hassam B. Clinical features and histological findings are potential indicators of activity in lesions of common vitiligo. Br J Dermatol 2012; 168:265-71. [DOI: 10.1111/bjd.12034] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Benzekri L, Gauthier Y, Hamada S, Hassam B. L’aspect clinique et les caractères histologiques de la zone marginale sont des indicateurs de l’évolutivité ou de la stabilité d’une tache de vitiligo. Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.10.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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El Morabite K, Benhiba H, Hamada S, Hassam B. Marrubium vulgare : la plante brûlante. Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.10.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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