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1.
Can J Infect Dis Med Microbiol ; 2022: 2497869, 2022.
Article in English | MEDLINE | ID: mdl-35368518

ABSTRACT

Background: The global point prevalence survey (Global-PPS) is the standard for the surveillance of prescribed antimicrobials among inpatients and provides data for the development of hospital antimicrobial stewardship programs. Aim: To evaluate the prevalence and quality of antimicrobial prescriptions using the universally standardized Global-PPS protocol in a non-acute care hospital in Saitama Prefecture, Japan. Methods: Antimicrobial prescriptions for inpatients, staying at the hospital overnight, were surveyed on three separate week days in November 2018, January 2019, and May 2019. Information on the prescribed antimicrobials on the survey target day was obtained from the in-hospital pharmacy. Survey data were collected by physicians, based on the extracted information. Patient information was anonymized and entered in the Global-PPS Web application by physicians. We report the antimicrobial use prevalence, the indication for prescription, diagnosis, the most prescribed antimicrobials, and a set of quality indicators related to antimicrobial prescribing. Results: In total, 6.7% of the surveyed inpatients (120/1796) were prescribed antimicrobials on the survey day. Sulfamethoxazole/trimethoprim was the most commonly prescribed, with 20.0% of systemic antibiotic prescriptions (ATC J01). Of all antibiotics for systemic use, up to 58.4% were Watch antibiotics, as defined by the World Health Organization AWaRe classification. The most prescribed group of systemic antibiotics was non-penicillin beta-lactam antibiotics (34.4%), followed by penicillin antibiotics in combination with beta-lactamase inhibitors (25.6%), and sulfonamides with trimethoprim (20.8%). Healthcare-associated infections and medical prophylaxis were the most common indications reported in 69.3% and 26.3% of prescriptions, respectively. The most common diagnosis for systemic antibiotic prescriptions was pneumonia (49.6%). Reasons for antimicrobial prescriptions were indicated in the medical records for 67.1% of prescriptions, and the stop/review date was documented to be 50.3%. Compliance with local guidelines reached 66.7%. Conclusions: This study highlights important challenges related to antimicrobial prescription in a highly specific, non-acute care patient population.

2.
J Gastroenterol Hepatol ; 36(6): 1642-1648, 2021 Jun.
Article in English | MEDLINE | ID: mdl-33125743

ABSTRACT

BACKGROUND AND AIMS: Laser endoscopy involves blue laser imaging in bright mode (BLI-bright). Linked color imaging (LCI) is superior to white light imaging (WLI) for detecting gastric cancers. This study aimed to detect gastric cancers on screening endoscopy using not only WLI but also BLI-bright and LCI in patients with atrophic gastritis. PATIENTS AND METHODS: A total of 500 patients with atrophic gastritis undergoing screening esophagogastroduodenoscopy were included. The gastric lumen was observed in the WLI mode, followed by the LCI and BLI-bright modes. When gastric neoplasms were suspected, the mode was changed to WLI, and we sprayed indigo carmine. Finally, biopsy specimens were taken for those lesions and pathological diagnosis was made. We compared the size, morphology, and color of gastric neoplasms found by the first WLI mode and those detected by only the LCI mode or BLI-bright mode. RESULTS: We detected 16 gastric neoplasms (3.2%), of which 13 were early gastric cancers (EGCs) and three were gastric adenomas. Ten EGCs and two gastric adenomas (75%) were detected by the first WLI mode; three EGCs and one gastric adenoma (25%) were missed by the first WLI mode and were detected by the LCI mode or BLI-bright mode. All were less than 1 cm in diameter and were reddish. Mean diameter of the lesions was significantly less for LCI-detected or BLI-bright-detected lesions than for WLI-detected lesions (7.8 vs 21.2 mm). CONCLUSIONS: Laser endoscopy is useful for detecting EGCs by LCI for patients with atrophic gastritis.


Subject(s)
Adenoma/diagnostic imaging , Color , Diagnostic Imaging/methods , Early Detection of Cancer/methods , Early Diagnosis , Endoscopy, Digestive System , Gastric Mucosa/diagnostic imaging , Gastritis, Atrophic/diagnostic imaging , Lasers , Light , Stomach Neoplasms/diagnostic imaging , Adenoma/pathology , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Stomach Neoplasms/pathology , Young Adult
3.
Intern Med ; 59(24): 3147-3154, 2020.
Article in English | MEDLINE | ID: mdl-33328413

ABSTRACT

A 49-year-old man complained of chronic palpitation and shortness of breath, which had recently become exacerbated. A blood examination indicated severe refractory anemia and hypoproteinemia. Physical examinations revealed anemia, a systolic murmur, and spoon nails. Multiple nonspecific ileal ulcers were observed. A pathological examination indicated a small granuloma with CD68-positive histiocytes. He had a deeply wrinkled forehead, chiseled face, and clubbed fingers. Radiography revealed periostosis of the fingers and long bones in the limb. He was diagnosed with pachydermoperiostosis. SLCO2A1 demonstrated a c.1807C>T homo-mutation. He was also diagnosed with SLCO2A1-associated chronic enteropathy and thus was treated with 5-aminosalicylic acid, which temporarily improved the ileal ulcers, anemia, and hypoalbuminemia.


Subject(s)
Inflammatory Bowel Diseases , Organic Anion Transporters , Osteoarthropathy, Primary Hypertrophic , Humans , Male , Middle Aged , Mutation , Organic Anion Transporters/genetics , Osteoarthropathy, Primary Hypertrophic/diagnosis , Osteoarthropathy, Primary Hypertrophic/genetics , Ulcer
4.
Gastroenterol Res Pract ; 2020: 7125642, 2020.
Article in English | MEDLINE | ID: mdl-32849868

ABSTRACT

METHODS: This study was a prospective, open-label, nonblinded, multicenter, and observational study. From September 2013 to March 2017, patients taking DOACs were enrolled. Patients underwent VCE. The type and location of small-bowel lesions were registered. Also, (1) the proportion of lesions detected between types of DOAC was evaluated and (2) the hemoglobin (Hb) and serum ferritin levels were compared between patients with and without small-bowel lesions. RESULTS: 33 patients were enrolled, but 4 patients withdrew their consent, and VCE was performed on 29 patients. Eight, 13, and 8 patients received dabigatran, rivaroxaban, and apixaban, respectively. Small-bowel transit was complete in 27 of 29 patients (93.1%). Small-bowel lesions were detected in 23 (79.3%), redness in 12 (41.4%), erosions in 14 (48.3%), and angioectasia in 3 (10.3%) patients, and 6 patients (20.7%) had no abnormalities. Redness and erosions were detected in the upper, middle, or lower portions, but erosions tended to be less frequent in the middle portion (p = 0.25, 0.06). Angioectasia was not detected in the lower portion. No patients had active bleeding. The findings did not differ according to the drug. The relationships between the endoscopic findings and the Hb and serum ferritin levels were not significant. CONCLUSION: Many patients taking DOACs had small-bowel lesions; however, most lesions were relatively mild. Observing small-bowel lesions over longer periods may be necessary in patients taking DOACs. This trial is registered with UMIN000011527.

5.
J Gastroenterol Hepatol ; 34(9): 1492-1496, 2019 Sep.
Article in English | MEDLINE | ID: mdl-31254485

ABSTRACT

BACKGROUND AND AIM: Transparent hood-assisted colonoscopy (TAC) has been reported to improve the cecal insertion rate and adenoma detection rate (ADR). An endoscopic cap (Endocuff) with two rows of soft wings was recently developed to improve ADR, by flattening the mucosal folds during withdrawal. This randomized prospective control study aimed to compare ADR between Endocuff-assisted colonoscopy (EAC) and TAC. METHODS: A total of 513 patients undergoing colon adenoma screening were included. EAC was performed in 256 patients and TAC in 260 patients. Cecal intubation rate, cecal intubation time, ADR, and mean adenoma number per patient (MAP) were investigated in both groups (clinical trial registration: UMIN000016278). RESULTS: We excluded six patients in the EAC group and two patients in the TAC group because of colonic stenosis due to colonic adenocarcinomas. Finally, 250 patients (151 men/99 women, median age 62.1 years) were assigned to EAC and 258 patients (165 men/93 women, median age 64.3 years) were assigned to TAC. There were no significant differences in cecal intubation rate, intubation time, withdrawal time, and cleanliness score between groups. The ADR was 50.8% in EAC and 52.7% in TAC, with no significant difference (P = 0.666). The MAP was 1.35 in EAC and 1.20 in TAC, with no significant difference (P = 0.126). However, The MAP of diminutive adenomas (< 5 mm) tended to be higher in EAC than in TAC (P = 0.077). There was no significant difference in MAP in each segment between groups. CONCLUSIONS: Endocuff-assisted colonoscopy might be equivalent to TAC in cecal intubation time, ADR, and MAP.


Subject(s)
Adenoma/pathology , Colon/pathology , Colonic Neoplasms/pathology , Colonoscopes , Colonoscopy/instrumentation , Intestinal Mucosa/pathology , Adult , Aged , Aged, 80 and over , Equipment Design , Female , Humans , Japan , Male , Middle Aged , Predictive Value of Tests , Prospective Studies , Reproducibility of Results
6.
Intern Med ; 58(15): 2167-2171, 2019 Aug 01.
Article in English | MEDLINE | ID: mdl-30996166

ABSTRACT

No specific endoscopic features for eosinophilic gastroenteritis (EGE) have been reported previously. This study therefore evaluated the endoscopic findings of six patients with EGE. The diagnosis was confirmed based on gastrointestinal symptoms, pathological findings on biopsy, and the absence of other diseases. The site of the lesion was identified based on eosinophilic infiltration with ≥20 cells per high-power field during a pathological specimen analysis. Flattening of the small intestinal villi was observed in four patients; we speculate that this may be a specific feature in the diagnosis of EGE.


Subject(s)
Duodenum/physiopathology , Endoscopy/methods , Enteritis/diagnosis , Enteritis/physiopathology , Eosinophilia/diagnosis , Eosinophilia/physiopathology , Gastritis/diagnosis , Gastritis/physiopathology , Intestinal Mucosa/physiopathology , Adult , Aged , Aged, 80 and over , Diagnostic Techniques and Procedures , Female , Humans , Male , Middle Aged , Young Adult
7.
World J Clin Cases ; 6(14): 776-780, 2018 Nov 26.
Article in English | MEDLINE | ID: mdl-30510942

ABSTRACT

A 19-year-old female was diagnosed with ulcerative colitis when she presented with persistent melena, and has been treated with 5-aminosalicylic acid for 4 years, with additional azathioprine for 2 years at our hospital. The patient experienced high-grade fevers, chills, and cough five d prior to presenting to the outpatient unit. At first, the patient was suspected to have developed neutropenic fever; however, she was diagnosed with Epstein-Barr virus-associated hemophagocytic syndrome (EB-VAHS) upon fulfilling the diagnostic criteria after bone marrow aspiration. When patients with inflammatory bowel disease treated with immunomodulators, such as thiopurine preparations, develop fever, EB-VAHS should be considered in the differential diagnosis.

8.
World J Gastroenterol ; 22(42): 9394-9399, 2016 Nov 14.
Article in English | MEDLINE | ID: mdl-27895427

ABSTRACT

AIM: To evaluate the morphology of the colon in patients with irritable bowel syndrome (IBS) by using computed tomography colonography (CTC). METHODS: Twelve patients with diarrhea type IBS (IBS-D), 13 patients with constipation type IBS (IBS-C), 12 patients with functional constipation (FC) and 14 control patients underwent colonoscopy following CTC. The lengths of the rectosigmoid colon, transverse colon and the total colon were measured. The diameters of the rectum, sigmoid colon, descending colon, transverse colon, and ascending colon were measured. RESULTS: The mean length of the total colon was 156.5 cm in group C, 158.9 cm in group IBS-D, 172.0 cm in group IBS-C, and 188.8 cm in group FC. The total colon in group FC was significantly longer than that in group C (P < 0.05). The mean length of the rectosigmoid colon was 56.2 cm, 55.9 cm, 63.6cm, and 77.4 cm (NS). The mean length of the transverse colon was 49.9 cm, 43.1 cm, 57.0 cm, and 55.0 cm. The transverse colon in group IBS-D was significantly shorter than that in group IBS-C (P < 0.01) and that in group FC (P = 0.02). The mean diameter of the sigmoid colon was 4.0 cm, 3.3 cm, 4.2 cm, and 4.3 cm (NS). The mean diameter of the descending colon was 3.6 cm, 3.1 cm, 3.8 cm, and 4.3 cm. The descending colon diameter in group IBS-D was significantly less than that in group IBS-C (P = 0.03) and that in group FC (P < 0.001). The descending colon diameter in group FC was significantly greater than that in group C (P = 0.04). The mean diameter of the transverse colon was 4.4 cm, 3.3 cm, 4.2 cm, and 5.0 cm (NS). CONCLUSION: CT colonography might contribute the clarification of subtypes of IBS.


Subject(s)
Colon/diagnostic imaging , Colonography, Computed Tomographic , Irritable Bowel Syndrome/diagnostic imaging , Aged , Constipation/etiology , Diarrhea/etiology , Female , Humans , Irritable Bowel Syndrome/classification , Irritable Bowel Syndrome/complications , Male , Middle Aged , Predictive Value of Tests , Prognosis , Rectum/diagnostic imaging , Retrospective Studies
9.
Allergol Int ; 65 Suppl: S6-S10, 2016 Sep.
Article in English | MEDLINE | ID: mdl-27118436

ABSTRACT

BACKGROUND: Eosinophilic esophagitis (EoE) is related to allergic diseases such as bronchial asthma (BA), atopic dermatitis, and allergic rhinitis. The aim of this study was to examine the eosinophil infiltration in the upper gastrointestinal (GI) tract in patients with BA using esophagogastroduodenoscopy. METHODS: Patients with BA who had upper GI tract symptoms were enrolled. Patients who received systemically administered steroids were excluded. Eosinophil infiltrations in the esophagus, stomach, and duodenum were examined with regard to the endoscopic findings and pathological findings of biopsy specimens (UMIN000010132). RESULTS: Ninety patients were enrolled from October in 2012 to September in 2014. Thirty-six were male, 54 were female, and the mean age was 57.5 years. Eighty-one (90%) used inhaled corticosteroids. Fourteen patients (15.6%) had reflux esophagitis, 8 of whom had grade A and 6 had grade B. No patient with EoE was observed. One female patient who had marked eosinophil infiltration in the esophagus, stomach, and duodenum was diagnosed as having eosinophilic gastroenteritis, but endoscopy showed only mucosal edema in the antrum. Another female patient who had marked eosinophil infiltration in the esophagus, stomach, and duodenum was diagnosed as having eosinophilic granulomatosis with polyangiitis, and endoscopy showed erosions in the antrum and the duodenum. Three patients had eosinophil infiltration in the stomach, but none of them had severe symptoms. CONCLUSIONS: Patients with asthma who had upper gastrointestinal symptoms rarely had eosinophilic gastrointestinal disorders. Biopsy specimens are of high importance in the diagnosis of eosinophilic gastrointestinal disorders even if there is no remarkable endoscopic finding.


Subject(s)
Asthma/pathology , Eosinophils/pathology , Upper Gastrointestinal Tract/pathology , Adolescent , Adult , Aged , Asthma/complications , Edema/pathology , Endoscopy, Gastrointestinal , Enteritis/complications , Enteritis/pathology , Eosinophilia/complications , Eosinophilia/pathology , Eosinophilic Esophagitis/complications , Eosinophilic Esophagitis/pathology , Female , Gastritis/complications , Gastritis/pathology , Humans , Male , Middle Aged , Mucous Membrane/pathology , Young Adult
10.
Intern Med ; 53(18): 2057-9, 2014.
Article in English | MEDLINE | ID: mdl-25224187

ABSTRACT

A pyogenic granuloma (PG) is a capillary hemangioma that usually occurs on the skin or in the oral cavity; it is rarely observed in the gastrointestinal tract. We herein describe a case of a 86-year-old woman who presented with anemia. Esophagogastroduodenoscopy and colonoscopy did not reveal any significant bleeding focus, but capsule endoscopy revealed a bleeding focus in the small intestine. We performed double-balloon enteroscopy and identified a 7-mm-diameter, reddish, subpedunculated, hemispheric polyp with a smooth surface in the small intestine, approximately 100 cm from the ileocecal valve. The polyp was surgically removed, and the histological findings were consistent with a diagnosis of PG.


Subject(s)
Double-Balloon Enteroscopy/methods , Granuloma, Pyogenic/diagnosis , Ileal Diseases/diagnosis , Ileum/pathology , Aged, 80 and over , Diagnosis, Differential , Female , Humans
11.
J Oral Maxillofac Surg ; 69(5): 1278-82, 2011 May.
Article in English | MEDLINE | ID: mdl-21256640

ABSTRACT

PURPOSE: To evaluate the course of the inferior alveolar nerve and its branches, the detectable branches were investigated with dental cone beam computed tomography (CBCT). MATERIALS AND METHODS: Patients in whom the lower third molar (M3) and inferior alveolar nerve canal showed overlapping in the initial panoramic image were included. One hundred twelve impacted lower M3s were extracted after examination with dental CBCT. The detection ratio, the course of the branches, and their relation with the M3 were retrospectively investigated. RESULTS: One hundred fifty-five branches were observed in 106 cases (94.6%, 106/112) around the M3. Most branches coursed under the M3 (55.5%, 86/155), and 85 branches (54.8%, 85/155) were in contact with the M3. The inferior alveolar nerve canal and branch(es) were mostly in contact with the M3 (57.5%, 61/106). CONCLUSIONS: Dental CBCT can detect most tubular structures representing branches in the impacted lower M3 region.


Subject(s)
Cone-Beam Computed Tomography/methods , Mandible/diagnostic imaging , Mandibular Nerve/diagnostic imaging , Molar, Third/diagnostic imaging , Adolescent , Adult , Aged , Anatomy, Cross-Sectional , Dental Arch/diagnostic imaging , Female , Humans , Image Processing, Computer-Assisted/methods , Imaging, Three-Dimensional/methods , Male , Middle Aged , Radiography, Panoramic , Retrospective Studies , Tooth, Impacted/diagnostic imaging , Young Adult
12.
Clin Interv Aging ; 5: 37-43, 2010 Apr 07.
Article in English | MEDLINE | ID: mdl-20396633

ABSTRACT

Bone formation below the crown of mandibular horizontal incompletely impacted third molar is frequently seen in the middle-aged and elderly. The phenomenon shows lamina dura loss without radiolucency and we hypothesized the participation of mature enamel without any influence on the environmental oral status. In order to investigate the characteristics of the phenomenon based on the presence/absence of the lamina dura and radiolucency below the crown, we studied the relationship between 58 men and 43 women with a lamina dura without radiolucency, 12 men and 8 women without a lamina dura with radiolucency, 34 men and 16 women without a lamina dura without radiolucency, and the status of teeth in the ipsilateral mandible. Subjects without a lamina dura without radiolucency were significantly older than those with a lamina dura without radiolucency in both men (P < 0.0001) and women (P <0.01), indicating different chronological causes. Men without lamina dura with radiolucency showed significantly more tooth loss than those with a lamina dura without radiolucency (P < 0.00001) and those without a lamina dura without radiolucency (P < 0.0001), indicating the influence of poor oral health. Thus, the phenomenon without a lamina dura without radiolucency may show the clinical importance of bone formation in the elderly.


Subject(s)
Osteogenesis/physiology , Tooth Socket/physiopathology , Adult , Dental Enamel , Female , Humans , Japan , Male , Mandible , Middle Aged , Molar, Third/diagnostic imaging , Molar, Third/physiopathology , Radiography, Panoramic , Tooth, Impacted/diagnostic imaging , Tooth, Impacted/physiopathology
13.
Article in English | MEDLINE | ID: mdl-23671397

ABSTRACT

The lamina dura is a healthy structural component in teeth. This study highlights the association of bone formation with disruption of lamina dura below the crown of the mandibular horizontal incompletely impacted third molar.

14.
Clin Interv Aging ; 4: 451-6, 2009.
Article in English | MEDLINE | ID: mdl-19966914

ABSTRACT

Changes in the lamina dura are associated with dental diseases around the root of the tooth and with systemic diseases; however, the lamina dura below the crown of horizontal, incompletely impacted third molars has not been studied. Using orthopantomography, we studied the age of subjects with and without the lamina dura in 419 subjects. The participants were between the ages of 21 and 89 years. Mean age in men with the lamina dura was 30.29 +/- 9.92 and without the lamina dura was 47.64 +/- 16.32 (P < 0.0001), and in women with a lamina dura it was 29.65 +/- 8.19 and without a lamina dura 41.97 +/- 11.07 (P < 0.0001). To study the effect of aging, the relationship between the lamina dura and dental status was assessed in subjects over the age of 31 years. Alveolar bone resorption in the canine and the first molar of the ipsilateral mandible in subjects without the lamina dura was not significantly higher than in those with the lamina dura. There were no significant differences in the number of teeth lost, except in men, the number of treated teeth and the number of decayed teeth differed between groups. Disruption of the lamina dura was related to age, but with no alveolar bone resorption in the mandible.


Subject(s)
Mandible , Molar, Third , Tooth Socket/physiopathology , Tooth, Impacted , Adult , Age of Onset , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Young Adult
15.
Clin Interv Aging ; 4: 337-42, 2009.
Article in English | MEDLINE | ID: mdl-19696898

ABSTRACT

Although radiolucency has been shown as a risk of infection, the poorly understood effects of aging on radiolucency correlate with acute pericoronitis, which has a high risk of infection extending any complications. We reviewed the records of 346 consecutive patients aged more than 41 years to evaluate whether pericoronal radiolucency below the crown in mandibular horizontal incompletely impacted third molars is related to acute inflammation. The frequency of acute inflammation in teeth with pericoronal radiolucency below the crown was similar to that in teeth without; however, the odds ratio of acute inflammation exhibited in women aged more than 61 years compared to women aged 41-50 years was 9.77 (95% confidence interval [CI]: 1.67-57.29; P < <0.05), and in women aged more than 61 years compared to women aged 51-60 years was 26.25 (95% CI: 2.94-234.38; P < 0.01). The odds ratio of severe acute inflammation exhibited in men aged more than 61 years compared to men aged 41-50 years was 16.67 (95% CI: 1.76-158.27; P < 0.01). These odds ratios indicate an association of acute pericoronitis, including the severe forms of acute inflammation that result from pericoronitis, with pericoronal radiolucency below the crown in the elderly.


Subject(s)
Inflammation/diagnostic imaging , Molar, Third/immunology , Tooth, Impacted/immunology , Acute Disease , Adult , Aged , Female , Humans , Inflammation/diagnosis , Male , Mandible/diagnostic imaging , Middle Aged , Molar, Third/diagnostic imaging , Molar, Third/physiopathology , Odds Ratio , Radiography , Retrospective Studies
16.
J Bone Miner Metab ; 27(1): 24-35, 2009.
Article in English | MEDLINE | ID: mdl-19082914

ABSTRACT

Osteoclasts are formed from the monocyte-macrophage lineage in response to receptor activator of nuclear factor kappaB ligand (RANKL) expressed by osteoblasts. Bone is the most common site of breast cancer metastasis, and osteoclasts play roles in the metastasis. The taxane-derived compounds paclitaxel and docetaxel are used for the treatment of malignant diseases, including breast cancer. Here we explored the effects of docetaxel on osteoclastic bone resorption in mouse culture systems. Osteoclasts were formed within 6 days in cocultures of osteoblasts and bone marrow cells treated with 1,25-dihydroxyvitamin D(3) plus prostaglandin E(2). Docetaxel at 10(-8) M inhibited osteoclast formation in the coculture when added for the entire culture period or for the first 3 days. Docetaxel, even at 10(-6) M added for the final 3 days, failed to inhibit osteoclast formation. Osteoprotegerin, a decoy receptor of RANKL, completely inhibited osteoclast formation when added for the final 3 days. Docetaxel at 10(-8) M inhibited the proliferation of osteoblasts and bone marrow cells. RANKL mRNA expression induced by 1,25-dihydroxyvitamin D(3) plus prostaglandin E(2) in osteoblasts was not affected by docetaxel even at 10(-6) M. Docetaxel at 10(-6) M, but not at 10(-8) M, inhibited pit-forming activity of osteoclasts cultured on dentine. Actin ring formation and L: -glutamate secretion by osteoclasts were also inhibited by docetaxel at 10(-6) M. Thus, docetaxel inhibits bone resorption in two different manners: inhibition of osteoclast formation at 10(-8) M and of osteoclast function at 10(-6) M. These results suggest that taxanes have beneficial effects in the treatment of bone metastatic cancers.


Subject(s)
Antineoplastic Agents/pharmacology , Bone Resorption , Bone and Bones/drug effects , Osteoclasts/drug effects , Osteoclasts/physiology , Taxoids/pharmacology , Actins/metabolism , Animals , Bone Marrow Cells/cytology , Bone Marrow Cells/physiology , Bone and Bones/cytology , Bone and Bones/physiology , Calcitriol/metabolism , Cell Survival/drug effects , Cells, Cultured , Coculture Techniques , Dinoprostone/metabolism , Docetaxel , Glutamic Acid/metabolism , Humans , Macrophages/cytology , Macrophages/drug effects , Macrophages/physiology , Male , Mice , Osteoblasts/cytology , Osteoblasts/physiology , Osteoclasts/cytology , Paclitaxel/pharmacology , RANK Ligand/genetics , RANK Ligand/metabolism
17.
Article in English | MEDLINE | ID: mdl-23674899

ABSTRACT

Acute pericoronitis (AP) arises frequently in incompletely impacted mandibular third molars, but it remains unknown whether bone resorption in aging is associated with acute inflammation of the third molar. We conducted an experiment to compare the ratio of bone resorption to root length in the distal surface of the second molar (A), the proximal surface (B), and distal surface (C) in mesio-angular, incompletely impacted third molars in 27 young and 58 older adults with AP and 77 young and 79 older adults without a history of AP. Bone resorption in A, B, and C in older adults with AP demonstrated a significantly higher ratio when compared to those without AP, whereas there was no difference between those with and without AP in young adults except for B in women. However, there were no differences between bone resorption in B with AP in young and older women, and between bone resorption in C with AP in young and older adults. These indicate that AP and bone resorption are associated with incompletely impacted mandibular third molars in older adults.

18.
Clin Cosmet Investig Dent ; 1: 27-34, 2009.
Article in English | MEDLINE | ID: mdl-23674902

ABSTRACT

Although mandibular third molar has a high risk of infection extending any complications, the influence of diabetes on radiolucency and acute inflammation in pericoronitis remains unclear. The present study was to evaluate whether radiolucency below the crown is related to acute inflammation in mandibular horizontal incompletely impacted third molars and to review the records of 140 men more than 45 years with and without diabetes. The odds ratio of exhibiting acute inflammation was 3.38 (95% CI: 1.13-10.16, p < 0.05) and that of exhibiting severe acute inflammation was 15.38 (95% CI: 3.56-66.49, p < 0.0001), indicating an association of acute pericoronitis in diabetes. The frequency of radiolucency below the crown and below the root in diabetics was similar to that in nondiabetics. However, the odds ratio of exhibiting both radiolucency below the crown and acute inflammation under the diabetic condition was 4.85 (95% CI: 1.60-14.73, p < 0.01), whereas that of diabetics showing both radiolucency below the root and acute inflammation was 0.46 (95% CI: 0.06-3.74, p = 0.74). Radiolucency below the crown and acute inflammation were associated with diabetes, but that below root and acute inflammation were not associated with diabetes, indicating that the region below the crown carries susceptibility to acute pericoronitis, whereas the periodontium shows a protective effect against acute pericoronitis.

19.
Int J Gen Med ; 2: 67-72, 2009 Jul 30.
Article in English | MEDLINE | ID: mdl-20360889

ABSTRACT

Acute inflammation is frequently seen in the elderly around incompletely impacted molars located apart from molars or premolars. To identify the factors causing acute inflammation in the solitary molars without second molars or without second and first molars, ages of patients and rates of acute inflammation in 75 horizontal incompletely impacted mandibular molars in contact or not in contact with molars in subjects 41 years old or older were studied using orthopantomographs. Acute inflammation was seen in nine third molars out of 48 third molars in contact with second molars (18.8%), whereas acute inflammation was seen in 11 molars out of 19 solitary molars without second molars or without first and second molars (57.9%) (p < 0.01). The mean age of 48 subjects with third molars in contact with the second molar was 50.42 +/- 7.62 years, and the mean age of 19 subjects with isolated molars was 65.16 +/- 10.41 years (p < 0.0001). These indicate that a solitary horizontal incompletely impacted molar leads more frequently to acute inflammation along with aging due to possible bone resorption resulting from teeth loss.

20.
Gerodontology ; 25(1): 10-7, 2008 Mar.
Article in English | MEDLINE | ID: mdl-18194335

ABSTRACT

AIM: Inorganic polyphosphate exists as chains of phosphate molecules and is distributed in osteoblasts, and regulates osteoblastic cell differentiation and bone matrix calcification. The purpose of this study was to clarify the effects of inorganic polyphosphate on periodontitis. MATERIAL AND METHODS: Subgingival local irrigation with inorganic polyphosphate was studied in a randomised double-blind study of 33 patients with periodontitis. Scaling and root planing were performed 1 week after the initial examination. RESULTS: No significant differences between the inorganic polyphosphate group and control were detected in each item except IL-1beta. Patients in whom both the bleeding on probing and gingival index at 1 week had improved were significantly older in the inorganic polyphosphate group than in the control group (p < 0.05). Bone regeneration was seen in one case of the inorganic polyphosphate group. CONCLUSIONS: Inorganic polyphosphate was useful in the treatment of periodontitis in the elderly, indicating a probable effect of anti-ageing, with similar bone regenerations occurring in both groups.


Subject(s)
Anti-Inflammatory Agents/therapeutic use , Dental Care for Aged/methods , Periodontitis/drug therapy , Polyphosphates/therapeutic use , Adult , Aged , Aged, 80 and over , Aging/drug effects , Anti-Inflammatory Agents/pharmacology , Bone Regeneration/drug effects , Dental Scaling , Double-Blind Method , Female , Gingival Crevicular Fluid/chemistry , Humans , Interleukin-1alpha/biosynthesis , Male , Middle Aged , Periodontitis/metabolism , Polyphosphates/pharmacology
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