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Biomedical subjects

T Tajima

Publications and source records attributed to T Tajima.

At least 235 records · Page 13Linked to original sources

Successful surgical treatment of secondary Kwashiorkor after total gastrectomy: report of a case.

We report herein the case of a 56-year-old woman who developed secondary Kwashiorkor 9 years after undergoing a total gastrectomy for early gastric cancer. Until she began developing the symptoms of Kwashiorkor, including general fatigue, edema of the face and extremities, anemia, alopecia, and weight loss, she had been leading a normal life post-gastrectomy. Her symptoms were alleviated by total parenteral nutrition (TPN) therapy, but reappeared soon after TPN therapy was discontinued. Therefore, she required several subsequent courses of TPN. In an attempt to permanently resolve the ongoing Kwashiorkor symptoms, reconstructive surgery involving transposition of the jejunum from the previous Graham method to the interposition method was performed 10 years after the initial gastrectomy. After the second operation, her malnutrition was completely alleviated, and she has been in good health for the 8 years since. To our knowledge, there has been no other report of the symptoms of secondary Kwashiorkor after total gastrectomy being alleviated by altering the procedure of reconstruction of the intestinal tract. Thus, we recommend surgical treatment to alter the digestive continuity to a more physiological pathway for selected patients with secondary Kwashiorkor syndrome.

Anastomosis, Surgical↗

Predominance of the mutation at 1138 of the cDNA for the fibroblast growth factor receptor 3 in Japanese patients with achondroplasia.

Fibroblast growth factor receptor 3 (FGFR3) has recently been identified as a putative gene for achondroplasia. Since a guanine to adenine mutation at 1138 of the cDNA for FGFR3 had been identified in most of the patients in Western population, we examined 13 Japanese patients to see if they also share the same mutation. Specific endonuclease digestion of the amplified coding sequence for the transmembrane domain of the FGFR3 revealed that the 12 patients have the G to A change at 1138, while the other had the G to C substitution at the same point, both of which result in G380A substitution. As far as we studied, the homogeneity of the point mutation at 1138 is also authentic to Japanese patient as well as Western patients.

Achondroplasia↗

Immunohistochemical localization of carcinoembryonic antigen as a predictor of lymph node status in submucosa-invasive colorectal carcinoma.

PURPOSE: Submucosa-invasive colorectal carcinoma is a colorectal carcinoma extending only into the submucosal layer. To clarify the metastatic potential of submucosa-invasive colorectal carcinoma, we studied the relationship between the immunohistochemical staining pattern of carcinoembryonic antigen (CEA) and that of lymphatic invasion/lymph node metastasis. METHODS: We investigated 49 submucosa-invasive colorectal carcinomas resected surgically or endoscopically. CEA distribution patterns of the neoplastic tissues were divided into three patterns: Pattern 1 = luminal type; Pattern 2 = apical cytoplasmic type; and Pattern 3 = diffuse cytoplasmic type. We also observed the submucosal stromal staining of CEA. RESULTS: Lymphatic invasion and lymph node metastasis were found in 48.8 percent (21/43) and 11.6 percent (5/43) of the Pattern 2/Pattern 3 cases, whereas these were seen in none (0/6) of Pattern 1 cases. Lymphatic invasion and lymph node metastasis were found in 63.3 percent (19/30) (chi-squared = 21.94; P < 0.001) and 16.7 percent (5/30) of the positive stromal CEA cases, whereas these were seen in 10.5 percent (2/19) and none (0/14) of the negative stromal CEA cases, respectively. CONCLUSION: Pattern 2/Pattern 3 and stromal CEA can be predictors of the lymph node metastasis with 11.6 percent and 16.7 percent risks.

Adult↗

Fluctuation of blood pressure and pulse rate during colostomy irrigation.

PURPOSE: The aim of this study was to determine the effects of colostomy irrigation on the vital signs of patients with left colostomy. METHODS: Twenty-two consecutive patients who underwent abdominoperineal resection for cancer of the lower rectum and had left lower quadrant end colostomy were included in this study. Subjective symptoms, blood pressure, and pulse rate during the first irrigation were investigated. RESULTS: Fluctuation of blood pressure during instillation was 8.0/8.5 mmHg (average) and 25.0/17.9 mmHg during evacuation. Fluctuation of pulse rate was 5.5 per minute (average) during instillation and 11.5 per minute during evacuation. The number of subjects who showed more than 20% fluctuation of systolic pressure was 12 (54.5 percent) and that of diastolic pressure was 14 (63.6 percent). One of 22 patients complained of illness during irrigation. CONCLUSION: Although colostomy irrigation showed no significant effects on vital signs in the majority of patients, it caused a significant reduction in both blood pressure and pulse rate in a small number of patients. Careful attention should be paid to vital signs considering the possibility of such effects, especially on the initial irrigation.

Aged↗

Three-dimensional display of the pelvic structure of anorectal malformations based on CT and MR images.

Three-dimensional images of the pelvic structure of patients with anorectal malformation (ARM) were constructed by computer graphics based on radiographic computerized tomography (CT) and magnetic resonance (MR) images. Organ contour data from CT images and raw MR image data were transferred to a personal computer and to a graphic workstation respectively. On MR image processing, organs were extracted semiautomatically by thresholding enclosed areas. After several steps of image processing, three-dimensional anatomy of each anomaly was visualized with emphasis on position and shape of the muscle complex. In control patients without an anomaly, images showed that the rectum is supported by the levator muscle from behind and descends along with the urethra. In the male patient, the anal canal separates from the urethra and penetrates through the middle of the sphincter complex to reach the orifice. In those with low-type anomaly with a fistula opening to the perineum or the vestibule, images showed the fistula descending through the anterior portion of the sphincter complex. Images of those with a rectourethral fistula could show the muscle complex behind the rectum and at the region where the external sphincter should be. In those with cloacal anomalies, anatomical position and the shape of three different viscera were easily recognized, and the muscle complex was shown like that of rectourethral-type anomalies. This study is a new approach to the anomaly to facilitate understanding it and can assist a surgeon in planning a procedure. This kind of application would make it possible for a surgeon to consider the strategy on a display screen before the real surgery.

Anal Canal↗

Restriction endonuclease analysis of field isolates of feline herpesvirus type 1 and identification of heterogeneous regions.

The genomic heterogeneity of 78 isolates of feline herpesvirus type 1 (FHV-1) recently isolated from cats suspected to have feline viral rhinotracheitis was analyzed by examining the digestion patterns found with restriction endonuclease MluI. The FHV-1 field isolates were classified into at least three genotypes, namely, the C7301, F2 (an attenuated vaccine strain), and C7805 types. The C7301 type seems to be a major type, since 64 of the 78 isolates belonged to this type. Eight and six isolates belonged to the F2 and C7805 types, respectively. Compared with the C7301 type, the heterogeneous region of the F2 type was localized to a 4.3-kbp EcoRI fragment within the US segment and the heterogeneous region of the C7805 type was localized to a 5.5-kbp XbaI fragment within the UL segment. Northern (RNA) blot analysis revealed no differences in the products transcribed from these regions. In addition, nucleotide sequence analysis showed that the MluI sites not found in the F2 and C7805 types were located in the regions homologous to the herpes simplex virus type 1 gI and UL5 genes, respectively.

Animals↗

Comparisons among feline herpesvirus type 1 isolates by immunoblot analysis.

Feline herpesvirus type 1 (FHV-1) isolated from cats suspected for feline viral rhinotracheitis could be divided into 3 genotypes (C7301, F2 and C7805 types) by digestion pattern with a restriction enzyme M1uI[16]. Variation of immunogenic products of 77 isolates were examined by immunoblot analysis using a polyvalent cat serum against C7301 strain, Japanese prototype strain of FHV-1. The result showed that a 36 kDa band was detected in 31 out of the 63 isolates belonging to C7301 type. However the band was not observed in the remaining 32 isolates of C7301 type and 14 isolates belonging to either F2 or C7805 type. In one isolate (91-58) of C7301 type, approximately 75 kDa band instead of 70 kDa band was observed, although the other bands were commonly observed in the remaining 76 isolates. From the results of the present and previous studies, FHV-1 field isolates could be divided into at least 4 groups and this grouping might be applicable for epidemiological studies of FHV-1 infection in the field.

Alphaherpesvirinae↗

[Pharmacokinetic and clinical studies with azithromycin (fine granule) in the pediatric field. Pediatric Study Group of Azithromycin].

Azithromycin (AZM) in 10% fine granules, a newly developed azalide antibiotic, was administered at a standard dose of 10 mg/kg once daily for 3 to 5 days (89.5% received 3 day administration) to children with infectious diseases and the efficacy and the safety of AZM were investigated. In addition AZM concentrations were determined in blood samples from 18 patients and in urine samples from 17 patients to examine o pharmacokinetic characteristics of AZM. 1. Absorption and excretion: Cmax's in 16 patients who received 10 mg/kg and 2 patients who received 20 mg/kg were 0.29 +/- 0.24 micrograms/ml and 0.75 micrograms/ml, respectively, while T 1/2's were 42.0 +/- 11.8 hours for the former and 51.3 hours for the latter. AUC(0 to approximately infinity)'s were 10.72 +/- 5.00 micrograms x hr/ml in the former and 28.83 micrograms x hr/ml in the latter. Urinary concentrations of AZM peaked at 48 to 72 hours after the administration of 10 mg/kg AZM in 14 patients, while it peaked at 24 to 48 hours in the patients who received 20 mg/kg. Urinary recovery rates in the first 120 hours after the start were 9.1 +/- 2.6% for 10 mg/kg and 10.8 +/- 3.4% for 20mg/kg. 2. Clinical efficacy: The study received 619 entries and 564 cases were evaluated for drug efficacy. The remaining were not evaluated because of dropout or exclusion. The efficacy rate, combining both "Excellent" and "Good" cases was 94.3% in 246 cases where pathogens were identified, classified as Group A. The efficacy rate was 90.7% for the remaining 321 cases, classified as Group B, where causative pathogens were unidentified. The difference between the two groups was no statistical significance. The combined efficacy rate was 92.2%. For the 116 cases where the patients had failed to respond to previous chemotherapies instituted for 3 days or longer, the efficacy rate for AZM was 94.0%. 3. Adverse reactions and abnormal laboratory tests: Incidents of diarrhea, soft stool, skin rashes, or vomiting were found in 15 patients (2.5%) of 596 cases eligible for evaluation. These reactions, however, were all transient and mild to moderate in severity in the 15 patients including 4 patients for whom the treatment was discontinued, all resolved in time. Abnormal changes in laboratory tests were found as follows: decrease in WBC in 23 patients (5.6%), increase in eosinophils in 28 (7.1%), increase in platelet count in 2 (0.5%), decrease in platelet count in 1 (0.3%), elevation of GOT in 3 (0.8%), and elevation of GPT in 6 (1.6%).(ABSTRACT TRUNCATED AT 400 WORDS)

Absorption↗

[Pharmacokinetic and clinical studies with azithromycin (capsule) in the pediatric field. Pediatric Study Group of Azithromycin].

Azithromycin (AZM) in 100 mg capsules, a newly developed azalide antibiotic, was administered at a standard dose of 10 mg/kg once daily for 3 to 5 days (89.9% received 3 day administration) to children with infectious diseases and the efficacy and the safety of AZM were investigated. In addition, AZM concentrations were determined in blood samples from 9 patients and in urine samples from 12 patients to examine pharmacokinetic characteristics of AZM. 1. Absorption and excretion: Cmax was 0.45 +/- 0.28 micrograms/ml, T 1/2 was 52.7 +/- 20.2 hours, and AUC(0 approximately to infinity) was 12.09 +/- 4.93 micrograms.hr/ml in the 9 patients each of whom received 8.5 to 14.3 mg/kg AZM. Urinary concentrations of AZM peaked at 48 to 72 hours after the administration of 8.5 to 14.7 mg/kg AZM in 12 patients and the average urinary recovery rate in 120 hours was 7.3 +/- 2.8%. 2. Clinical efficacy: The study received 139 entries and 119 cases were evaluated for drug efficacy. The remaining were not evaluated because of dropout or exclusion. The efficacy rate combining both "Excellent" and "Good" cases, was 100% for 40 cases in which pathogens were identified, classified as Group A. The efficacy rate was 97.5% for the remaining 79 cases, classified as Group B, where causative pathogens were unidentified. The difference between the two groups was no statistical significance. The combined efficacy rate was 98.3%. For the 31 cases where the patients had failed to respond to the previous chemotherapies instituted for 3 days or longer, the efficacy rate for AZM was 93.5%. 3. Adverse reactions and abnormal laboratory tests: 8 incidents of diarrhea, skin rashes, urticaria, or vomiting were found in 7 patients (5.4%) of 130 cases eligible for evaluation. These reactions, however, were all transient and mild to moderate in severity in the 7 patients including 2 patients for whom the treatment was discontinued, all resolved in time. Abnormal changes in laboratory tests were found as follows: decrease in WBC in 10 patients (9.3%), an increase in eosinophils in 12 (11.4%), an increase in platelet count in 1 (1.0%), an elevation of GOT in 3 (3.1%), an elevation of GPT in 6 (6.2%), and an elevation of LDH in 1 (1.1%). The abnormalities were transient and did not require particular intervention. Moreover, none of the patients indicated clinical signs associated with the abnormal changes of laboratory tests.(ABSTRACT TRUNCATED AT 250 WORDS)

Absorption↗

[Pharmacokinetic and clinical studies of S-1108 in the pediatric field. Pediatric Study Group of S-1108].

S-1108 in granules, a new oral cephem antibiotic, was pharmacokinetically and clinically evaluated in the pediatric field and the following results were obtained. 1. Pharmacokinetics S-1108 was administered at single doses of 2, 3, 4, 6 mg/kg orally and the following results were obtained on Cmax, T 1/2 and AUC, respectively: Cmax: 0.79, 1.03, 1.39, 1.06 micrograms/ml, T 1/2: 1.28 +/- 0.40, 1.27 +/- 0.65, 1.10 +/- 0.29, 1.83 hrs., AUC: 2.65 +/- 0.63, 3.99 +/- 2.77, 5.25 +/- 1.83, 5.15 micrograms.hr/ml. These values indicated a dose-dependent pharmacokinetic behavior. Urinary recovery rates were 12.5-30.0% in the first 8(6) hours after administration. 2. Clinical results The clinical efficacy of S-1108 was evaluated in 456 patients with various infections. S-1108 was administered at a dose of 2-4 mg/kg three time a day to most patients. The overall clinical efficacy rate was 95.0%. In 294 cases with identified causative pathogen, the clinical efficacy rate was 96.9%, and the bacteriological eradication rate was 89.0%. Side effects occurred in 18 (3.23%) of 558 patients subjected to safety analyses. The main side effect was diarrhea but those side effects were mild and reversible. Abnormal laboratory test results were observed in 25 cases, (eosinophilia and elevated GOT and GPT). These abnormalities were not dose-dependent and also seen with other cephems to a similar extent. No particular and serious problems were associated with administration of this drug. Based on the above results, S-1108 is considered to be very useful at a standard dose of 2-4 mg/kg t.i.d. against most infections encountered in the pediatric field out-patient clinic.

Administration, Oral↗

[A case of acute disseminated encephalomyelitis with lesions in the cerebral gray matter on MRI in the acute phase].

We reported a case of acute disseminated encephalomyelitis (ADEM) after Streptococcus infection. Brain MRI (T2-weighted image) showed high intensity lesion in the gray matter in the acute phase. The high intensity pattern of the lesion was different from those in previously reported cases. The boy, aged 14, had fever late in August 1993. He had lumbago and back pain since September 3 and also leg weakness developed since September 7. He became unable to urinate on September 10 and was admitted on September 12. His consciousness became indistinct. We considered ADEM on the basis of high CSF level of myelin basic protein, clinical course, symptoms and MRI findings and began to administer steroid hormone on the second day after admission. He rapidly recovered. We reported here an atypical case of ADEM as to the antecedent infection and MRI lesion.

Adolescent↗

[Pharmacokinetic, bacteriological, and clinical studies on SY5555 in children].

Pharmacokinetic, bacteriological and clinical studies on SY5555 were performed in children. The results were as follows: 1. A total of 15 patients considered to have bacterial infections were treated with SY5555. Each dose, 5 mg/kg, was orally administered 3 times daily, for 4-11 days. Clinical efficacies of SY5555 in 13 patients with bacterial infections (1 with pneumonia, 2 with bronchitis, each 1 with maxillary sinusitis, 2 with otitis media, 5 with pharyngitis, 1 each with gastroenteritis and pyelonephritis) were evaluated as excellent in 10 patients and as good in 3 patients with an efficacy rate of 100%. Two patients with viral infection and malignant lymphoma were not evaluated. Thirteen causative strains in 7 species were found in 10 patients. Streptococcus pneumoniae in 1/3, Haemophilus influenzae in 2/2, Streptococcus pyogenes 4/4, Salmonella spp. in 1/1, Escherichia coli in 1/1 were eradicated. Only one patient developed mild diarrhea as an adverse reaction. Another patient showed elevated GPT (glutamate pyruvate transaminase). The abnormality was mild and the patient recovered after the cessation of SY5555 administration without specific treatment. 2. MICs of SY5555 were examined against 33 clinical isolates. SY5555 has low MICs against Enterococcus faecalis and other Gram-positive cocci. 3. Pharmacokinetic studies Peak plasma concentrations of SY5555 was 1.15 micrograms/ml at a dose level of 4.9 mg/kg orally administered at fasting. Based on the above results and the broad spectrum of the anti-bacterial activities, SY5555 appears to be a promising antibiotics that is usable as a single agent for the primary therapy of respiratory tract infections, skin soft tissue infections and urinary tract infections in children.

Bacterial Infections↗

[Chemotherapy for patients with recurrent breast cancer and quality of life].

Chemotherapy plays a major indispensable role in treating patients with recurrent breast cancer. Although standard regimens such as CAF, FAC or CMF yield approximately a 50% response rate, the response usually lasts only for 6 months or so on average. For those who have an unfavorable response to chemotherapy, significant portions of their remaining time are to be consequently lost with only identifying damaging effects of treatment, depressed quality of life. Because of this dismal outcome, many of the patients are deeply discouraged about the future, and there is a desperate need for better treatment. Autologous stem cell support, originally practiced in the form of autologous bone marrow transplantation, has been found instrumental in treating breast cancer, and our pilot study started some fifteen years ago showed a higher response rate and survival rate compared to conventional chemotherapy. Moreover, there have been some long-term disease-free survivors with probable cures among complete responders. This is because quality of life is not a mere rating of health status, and is something perceived by each patient individually, reflecting the way in which individual patients feel about their health status. Although high-dose chemotherapy with autologous stem cell support will cause quite a lower quality of life for a significant period of time, it has been fairly well accepted and tolerated by many patients who would be able to maintain some degree of hope. The need to incorporate patients' values, preferences and hopes is what distinguishes quality of life from all other health measures, and physicians' values ought to play no major role in the decision making process when the outcome is often palliation and treatments may be unpleasant.

Antineoplastic Combined Chemotherapy Protocols↗

Effect of the proteoglycan (PSK) on lymphocyte subsets in normal rats.

The effect of the proteoglycan biologic response modifier, PSK, on lymphocyte subsets was investigated in normal rats. Six-week-old male SPF Wistar-Imamichi rats were fed a diet containing 2% PSK. Peripheral blood lymphocytes (PBL), thoracic duct lymphocytes (TDL), and those existing in the thymus, spleen and Peyer's patches were collected for analysis of subsets of T cells, helper/inducer T (Th) cells, suppressor/cytotoxic T (Ts) cells and B cells compared with those of the control group. In the PBL, differential and absolute counts of T and Th cells were lower in the group fed PSK (the PSK group) than the control group. There was no difference in Ts cells between the groups, and the PSK group showed a higher B-cell differential count. In the case of TDL, the PSK group showed greater absolute counts of T and Th cells than the control group. In tissue lymphocytes, differential T and Th cell counts were significantly greater in the PSK group than the control group, as observed first in Peyer's patches and later in the spleen. No differences between the groups were observed in these counts in the thymus. Changes in body distribution of T and Th cells induced by PSK treatment first appeared in lymphocytes in Peyer's patches, followed by PBL and TDL, and those in the spleen. No such changes were observed in the thymic lymphocytes.

Animals↗