1) Tension development during rapidly grip strength exertion of athletes and nonathletes was by Natori's method analyzed.
2) Subjects of athletes were 71 healthy men of 17-26 ages and of non-athletes were 54 healthy men of 17-30 ages. Athletes were 26 high school students of 17-19 ages, 22 physical education college students of 19-21 ages and 23 general adult men of 20-26 ages. High school students were 3 Sumo-men, 4 Judo-men, 6 Kendo-men and 13 Baseball-men. Physical education college students were 6 Handball-men, 9 Rugby-men and 7 Gymnasticsmen. General adult men were 11 Judo-men and 12 Kendo-men. Non athletes were 20 high school students of 17-18 ages, 6 university students of 19-21 ages and 28 general adult men of 21-30 ages.
3) Isometric grip strength manometer were used a new device, to improvement on Smedley's manometer straingauge added.
Tension development were amplifired and recorded by portable Visigraph (Sanei-Sokki Ltd.) with paper-speed of 10cm/sec.
4) In the each case was 3 portions of a whole curve of time course of tension and Pmax.P₁, P₂; log t₁, log t₂; tan θ, tan ψ estimated according Natori's method.
5) Except general adults of 26-30 ages of non-athletes were Pmax. of athletes greater than non-athletes.
Pmax, of a Judo-man of general adult was greatest 68.5kg, and Pmax. of a high school student of 17 age of non-athlete smallest 35.8kg.
6) Tan θ and tan ψ of athletes were greater than non-athletes.
Tan θ of a Sumo-man of high school student was greatest 0.3628 and tan θ of a Judoman of general adult was greater 0.3500, but tan θ of a high school student of non-athletes was smallest 0.1624.
Tan ψ of a Kendo-man of general adult was greatest 1.6308 and tan ψ of a Sumoman of high school student was greater 1.5769, but tan ψ of a high school student of non-athlete was smallest 0.5278.
7) Muscle strength of non-athletes may well increased to be about 25 age, so that Pmax. of general adults of non-athletes were greater and of high school students of nonathletes smaller.
But athletes exercised usually for athletic sports, so that Pmax, and tan θ, tan ψ independent of age was greater than non-athletes, these were an each event varied. Pmax. of Judo-men of general adults were relative greater and tan θ, tan ψ were greatest. Pmax. of Handboll-men were greatest but tan θ, tan ψ were relative smaller. Pmax. of Gymnas-tics-men were relative greater but tan θ, tan ψ were smallest. So that were varied pattern of time course of tension development of hand grip exertion an each event of athletics.

In the present study, the effects of bulb type palatal lift prosthesis (bulb-PLP) therapy on nasality and velopharyngeal function (VPF) of patients with velopharyngeal incompetence (VPI) following palatoplasty were longitudinally assessed.The subjects included 18 patients (3 to 52 years of age) who had shown persistent VPI following palatoplasty and who had received bulb-PLP therapy. Nasality and VPF were assessed by perceptual voice analysis, nasometer test, blowing test, and cephalometric radiographic examination. Based on the outcomes of bulb-PLP therapy, the subjects were classified into two groups: the effective group and the ineffective group. Furthermore, the obturating and VPF-activating effects by bulb-PLP therapy were analyzed, and factors relating to different VPF activities were determined.All subjects achieved adequate VPF by wearing a bulb-PLP. After treatment, 10 patients (55.6%) achieved successful activation of VPF without bulb-PLP (the effective group), while persistent VPI remained in 8 patients (the ineffective group). The beginning-blowing ratio of the effective group was significantly greater than that of the ineffective group (P < 0.05) and the velopharyngeal distance (V-P distance) of the effective group tended to be smaller (P = 0.07). Regarding the shape of the bulb head, the angular type was dominant in the ineffective group, while the round type was dominant in the effective group.Bulb-PLP therapy was useful for providing adequate VPF activation. Possible signs of the subsequent effective activation of VPF are considered to be: 1) preexisting adequate VPF on blowing, 2) smaller V-P distance, and 3) synchronized palatopharyngeal movement.

DeBakey IIIb aortic dissection associated with thoracic aneurysm was successfully operated upon in a 59-year-old man. The patient had sudden onset of severe back pain and pain in the left lower extremity and dissection associated with thoracic aneurysm was diagnosed. During the operation, we used partial cardiopulmonary bypass support with cannulation of the pulmonary and femoral artery. The entry of the dissection was in a true aneurysm of the descending aorta, and it was replaced with a 22mm Hemashield prosthetic graft. Aortic dissection, with entry in the true aneurysm is rare and is of high risk for rupture.

Nuclear factor-κB (NF-κB) is involved in the promotion of cell survival in a variety of cell types. The present study focused on the role of NF-κB in TNFα-induced apoptosis in an ameloblastoma. Immunohistochemical staining revealed p65 NF-κB protein to be expressed in ameloblastoma tissues. Furthermore, immunoblotting and immunocytochemistry analyses showed that the stimulation of TNFα in an ameloblastoma cell line (AM-1) induced p65 NF-κB translocation from the cytoplasm to the nucleus, indicating NF-κB activation. These findings were confirmed by an NF-κB luciferase reporter assay, which detected enhanced NF-κB transcription activity of AM-1 cells by TNFα stimulation. Moreover, pretreatment with SN50, a nuclear translocation inhibitor, prior to TNFα stimulation, effectively inhibited TNFα-induced NF-κB activation in AM-1 cells. In order to reveal the role of NF-κB activation during TNFα-induced apoptosis in AM-1 cells, an apoptosis assay was performed, and showed that the potential of TNFα in inducing apoptosis in AM-1 cells was significantly elevated by inhibiting the NF-κB activation. These results suggest that NF-κB plays an anti-apoptotic role in TNFα-induced apoptosis in AM-1 cells.

There are few reports on the long term efficacy of surgery for endocardial cushion defect (ECD) in elderly patients. We report a case with a successful course after ECD operation. A 70-year-old man was admitted with incomplete ECD, grade III mitral and tricuspid regurgitation, pulmonary hypertension and atrial fibrillation. The operative procedures included direct closure of the mitral cleft, pericardial patch closure for the ostium primum defect, direct closure of the tricuspid cleft and tricuspid annuloplasty. Pulmonary hypertension was improved after the operation, and he was discharged on the 41st day after the operation. Now, 3 years and 6 months after the operation, he has maintained an improved quality of life (QOL) with an uneventful postoperative course. The present report may suggest one solution for the long term effective treatment by operation for elderly patients who suffer from ECD, especially to achieve better QOL.

　　A 48-year-old man with jaundice was referred to our hospital. Endoscopic retrograde cholangiography showed primary sclerosing cholangitis. Endoscopic biliary drainage was not successful because of highly viscous bile, so we performed percutaneous trans-gallbladder drainage (PTGBD), which was able to reduce the total serum bilirubin level from 8 to 10mg/ml. Subsequently, an indwelling drainage catheter was placed in the gallbladder for 13 months. However, liver atrophy worsened with the gradual progression of hepatic failure. Twelve months later, he complained of dyspnea. Computed abdominal tomography showed that the drainage catheter had perforated the diaphragm and become exposed to the chest cavity. In spite of intensive care, the patient died of liver failure while waiting for a liver transplant. Careful attention should be paid to the possibility of this serious complication in such patients.

We report a case of successful anatomical reconstruction with omentopexy of an infected abdominal aortic aneurysm (AAA) in a patient with a previous history of coronary artery bypass grafting with the right gastroepiploic artery. A 60-year-old man was referred to our institute because of fever and abdominal pain during hemodialysis for chronic renal failure. Antibiotic therapy was started after computed tomography revealed an infected abdominal aortic aneurysm. After infection control, surgical treatment was scheduled. At surgery, left axillo-bifemoral bypass was performed first, because it was unclear whether the omentum was large enough for omentopexy. At laparotomy, adequate omentum and infective AAA were confirmed. AAA repair using a rifampicin-soaked graft, and omentopexy were performed. Enterobacter aerogenes was detected from the resected aortic wall. After the operation, intravenous antibiotic was used for 25 days until CRP was normalized. One year follow-up showed no sign of re-infection.

Subclavian artery aneurysm (SCAA), a peripheral arterial aneurysm, is a rare entity. The surgical procedure and approach depend on the location of the aneurysm. We present a case of the endovascular therapy combined with cross axillary bypass. The patient was a 75-year-old man with a small abdominal aortic aneurysm. Multi-detector computed tomography (MDCT) revealed an intrathoracic right SCAA 38 mm in diameter. The operation was performed successfully under general anesthesia. After cross bypass of bilateral axillary artery, the orifice of the right subclavian artery was covered with a stent-graft inserted into the right common carotid artery-brachiocephalic artery and the right subclavian artery was occluded with coils distal to the aneurysm. Post operation angiogram showed complete exclusion of the SCAA and patency of the right common carotid and right vertebral artery. We thought this hybrid treatment for the intrathoracic SCAA could be a useful surgical strategy.

Aortic dissection with rupture into the right atrium is an extremely rare and rapidly fatal condition. We report the case of a 59-year-old man with a history of double valve replacement 2 years earlier at another hospital. Although the previous postoperative course had been uneventful, the patient had experienced facial edema and general fatigue for 10 days before admission to our hospital because of heart failure. The diagnosis of chronic aortic dissection with rupture into the right atrium was confirmed by intraoperative transesophageal echocardiography. At operation, we observed an aortic dissection that originated from a tear in the original aortic incision line. The fistula extended from the false lumen to the right atrium. The aortic adventitia were partially defective. The aortic dissection had ruptured and a pseudo-aneurysm had formed. We performed ascending aortic replacement and closure of the aorta-right atrium fistula under hypothermic arrest on cardiopulmonary bypass. The postoperative course was uneventful and the patient was discharged on the 17th postoperative day.

We report a case involving a young female patient with severe mandibular retrognathism accompanied by mandibular condylar deformity that was effectively treated with Le Fort I osteotomy and two genioplasty procedures. At 9 years and 9 months of age, she was diagnosed with Angle Class III malocclusion, a skeletal Class II jaw relationship, an anterior crossbite, congenital absence of some teeth, and a left-sided cleft lip and palate. Although the anterior crossbite and narrow maxillary arch were corrected by interceptive orthodontic treatment, severe mandibular hypogrowth resulted in unexpectedly severe mandibular retrognathism after growth completion. Moreover, bilateral condylar deformities were observed, and we suspected progressive condylar resorption (PCR). There was a high risk of further condylar resorption with mandibular advancement surgery; therefore, Le Fort I osteotomy with two genioplasty procedures was performed to achieve counterclockwise rotation of the mandible and avoid ingravescence of the condylar deformities. The total duration of active treatment was 42 months. The maxilla was impacted by 7.0 mm and 5.0 mm in the incisor and molar regions, respectively, while the pogonion was advanced by 18.0 mm. This significantly resolved both skeletal disharmony and malocclusion. Furthermore, the hyoid bone was advanced, the pharyngeal airway space was increased, and the morphology of the mandibular condyle was maintained. At the 30-month follow-up examination, the patient exhibited a satisfactory facial profile. The findings from our case suggest that severe mandibular retrognathism with condylar deformities can be effectively treated without surgical mandibular advancement, thus decreasing the risk of PCR.
Cleft Lip ; Congenital Abnormalities* ; Female ; Follow-Up Studies ; Genioplasty* ; Humans ; Hyoid Bone ; Incisor ; Jaw ; Malocclusion ; Malocclusion, Angle Class III ; Mandible ; Mandibular Advancement ; Mandibular Condyle ; Maxilla ; Molar ; Orthognathic Surgery ; Osteotomy* ; Palate ; Polymerase Chain Reaction ; Retrognathia* ; Tooth