• Title/Summary/Keyword: Resorption rate

Search Result 186, Processing Time 0.032 seconds

Secondary Augmentation Rhinoplasty with Immediate Autogenous Dermofat Graft after Removal of Paraffinoma (비부 파라핀종의 제거와 동시에 시행한 자가진피지방이식을 이용한 융비술)

  • Choi, Kang Young;Kirk, In Soo;Cho, Byung Chae
    • Archives of Plastic Surgery
    • /
    • v.34 no.6
    • /
    • pp.785-791
    • /
    • 2007
  • Purpose: Paraffin has been used to augment depressed nasal contour for many years by illegally. Reported complications of nasal paraffinoma were skin thinning, displacement of nasal profile, redness, chronic inflammation and malignant change to skin cancer. The current authors report results of the secondary rhinoplasty after excision of nasal paraffinoma. Methods: Through the open rhinoplasty incision, paraffinoma was removed under direct vision. Saline irrigation and meticulous hemostasis were performed. Simultaneously, the secondary depressed nasal deformity was corrected with autogenous dermofat graft harvested from inferior gluteal fold. The dermofat was fixed to the nasofrontal area with bolster suture, and the interdormal area of the tip. Results: A total of 13 patients underwent secondary augmentation with autogenous dermofat graft after removal of paraffinoma from 2000 to 2004. The mean follow-up period was 15 months. There were no postoperative complications. All patients were satisfied with their surgical results. However, there were 10 to 20 percent resorption of the grafted dermofat. Conclusion: It is suggest that autogenous dermofat be one of good materials for the correction of the secondary deformity after removal of nasal paraffinoma. In addition, autogenous dermofat graft presented easy harvesting and manipulation for transfer, high survival rate by firm fixation to the recipient site and stable surgical results.

Effects of Soy Isoflavone Supplementation and Exercise on Bone Mineral Density and Urinary Deoxypyridinoline in Postmenopausal Women (폐경 후 여성에서 대두 이소플라본 공급 및 운동처방이 골밀도 및 소변 디옥시피리디놀린에 미치는 영향)

  • 승정자;윤미은;이재구;김미현;이행신
    • Journal of Nutrition and Health
    • /
    • v.37 no.4
    • /
    • pp.291-301
    • /
    • 2004
  • We studied the effects of soy isoflavones supplementation with exercise on bone mineral density and the urinary excretion of deoxypyridinoline as an index of bone resorption rates in postmenopausal women. A total of 67 postmen-opausal women were assigned to Isoflavone (90 mg/day) or placebo groups. These group were further divided into groups that undergone a regular exercise or a rather sedentary state performing daily activity only. Four groups were Placebo-control group (n = 16), Placebo-exercise group (n = 16), Isoflavone-sedentary group (n = 19) and Isofla-vone-exercise group (n = 16). After the intervention, we compared anthropometric mesurement, dietary recall, bone mineral density (femoral neck, lumbar spine), urinary deoxypyridinoline between the groups and between the pre and post studies. There were no significant differences between the four groups in terms of average age, height, weight, period after menopause at the baseline. The average age of the subjects were 55.2 yrs, average height, weight, period after menopause were 154.7 cm, 59.3 kg, 5.58 yrs, respectively. After eight week intervention period, there were no significant differences between the four groups in bone mineral density, but urinary deoxypyridinoline excretion was significantly decreased both in Isoflavone-sedentary and Isoflavone-Exercise groups. These results suggest that Isofla-vone supplementation alone or with exercise may be preventive measures through the decrease of bone reabsorption rate in post-menopausal subjects. Whereas exercise alone did not appear to be an effective measure in bone loss with these subjects.

Effects of taurine supplementation on bone mineral density in ovariectomized rats fed calcium deficient diet

  • Choi, Mi-Ja
    • Nutrition Research and Practice
    • /
    • v.3 no.2
    • /
    • pp.108-113
    • /
    • 2009
  • Taurine supplementation has been shown to have a beneficial effect on femur bone mineral content in ovariectomized rats. It therefore seemed desirable to find out whether the beneficial effect of taurine on ovariectomized rats fed calcium deficient diet could also be reproduced. Forty female Sprague-Dawley rats were divided into two groups, One group was OVX and the other group received sham operation (SHAM), and received either control diet or a taurine supplemented diet for 6 weeks. All rats were fed on calcium deficient diet (AIN-93: 50% level of calcium) and deionized water. Bone mineral density (BMD) and bone mineral content (BMC) were measured in spine and femur. The serum and urine concentrations of calcium and phosphorus were determined, Bone formation was measured by serum osteocalcin and alkaline phosphatase (ALP) concentrations, Bone resorption rate was measured by deoxypyridinoline (DPD) crosslinks immunoassay and corrected for creatinine. Urinary calcium and phosphorus excretion, osteocalcin in blood and cross link value were not significantly different among the groups. Within the OVX group, the taurine supplemented group had not higher femur bone mineral content than the control group. This study established the need for a study on the taurine effect on bone with different calcium levels.

Simultaneous Implant Installation Using the Block Bone Graft (치조열에서 블록 골이식을 이용한 임플란트 동시 매식법)

  • Choung Pill-Hoon;Kang Nara;Hong Jong-Rak
    • Korean Journal of Cleft Lip And Palate
    • /
    • v.5 no.2
    • /
    • pp.85-93
    • /
    • 2002
  • Simultaneous implant installation with bone graft was performed in 15 cases. Four cases were cleft alveolus patients. 56 implants were placed immediately with block bone grafts. 2 cases were cranial bone grafts and the others were iliac bone grafts. Three of 56 implants were lost(94.6% Survival rate). One of three was cleft alveolus case. The cleft alveolus patients with simultaneous implants installation showed functional and esthetic results without infraocclusion and positional changes. Bergland index was considered to be type I after 12 months later. Immediate implant installation with bone graft is one of choice of treatment in closing cleft alveolus hoping simultaneous implant installation could be related with function which might result in less resorption of graft. Functional and esthetic results are satisfaction ; there was no infraocclusion and positional changes.

  • PDF

Reproductive Toxicity Study of DA-125, A New Anthracycline Anticancer Agent: (II) Fertility Study in Rats (새로운 안트라사이클린계 항암제 DA-125의 생식독성연구: (II) 랫트 수태능력시험)

  • 정문구;김종춘;김원배;노정구
    • Biomolecules & Therapeutics
    • /
    • v.2 no.1
    • /
    • pp.94-101
    • /
    • 1994
  • DA-125, a new anthracycline antitumor antibiotic, was at dose levels of 0, 0.03, 0.1 and 0.3 mg/kg/day administered intravenously to Sprague-Dawley male rats from premating to mating period and to females from premating to early gestation period. Effects of test agent on general findings and reproductive performance of parent animals and embryonic development were examined. No treatment-related changes in clinical signs, body weight, food consumption and necropsy findings were observed in all groups of both sexes. At 0.3 mg/kg, a decrease in the weight of spleen was found only in male rats. Mating performance and fertility of parent animals were not adversely affected by all doses tested. Fl fetuses showed no changes related to treatment of DA-125, except that at 0.3 mg/kg, an increase in the resorption rate was seen. The results show that the no effect dose levels (NOELS) for general toxicity of parent animals and fetal development are 0.1 mg/kg/day and NOELS for reproductive capability are over 0.3 mg/kg/day.

  • PDF

Reproductive Toxicity Study of DA-125, A New Anthracycline Anticancer Agent: (I) Teratogenicity Study in Rats (새로운 안트라사이클린계 항암제 DA-125의 생식독성연구: (I) 랫트 최기형시험)

  • 정문구;한상섭;양중익;노정구
    • Biomolecules & Therapeutics
    • /
    • v.2 no.1
    • /
    • pp.82-93
    • /
    • 1994
  • DA-125, a new anthracycline antitumor antibiotic, was at dose levels of 0, 0.1, 0.3 and 1.0 mg/kg/day administered intravenously to pregnant Sprague-Dawley rats during the organogenetic period. Two-third of dams per group were subjected to caesarean section on day 20 of pregnancy and the remaining 10 dams per group were allowed to deliver. Effects of test substance on dams, embryonal development of Fl fetuses, as well as growth, behaviour and mating performance of Fl offspring were examined. 1. At 1 mg/kg, one out of the 10 dams showed difficult delivery. A decrease in food consumption, a loss in body weight and a decrease of spleen weight were found in this dose level group. At 0.3 mg/kg, difficult deliverys were observed in two out of the 10 dams. 2. At 1 mg/kg, an increased resorption rate and a decreased fetal weight were found. In addition, various types of external, visceral and skeletal malformations occurred at an incidence of 11.9, 41.8 and 14.5%, respectively. 3. At 1 mg/kg, body weight reduction, small eyeball, hydrocephalus and atrophy of sexual organs were observed in Fl offspring. One male pup receiving 0.3 mg/kg died on day 2 of lactation. The results show that the no-effect dose levels (NOELs) for dams and Fl offspring are 0.1 mg/kg/day and NOEL for Fl fetuses is 0.3 mg/kg/day.

  • PDF

Effects of Arginine Supplementation on Bone Markers and Hormones in Growing Female Rats (성장기 암컷 쥐에서 Arginine 첨가 식이가 골 대사 지표 및 호르몬에 미치는 영향)

  • Choi, Mi-Ja
    • Journal of Nutrition and Health
    • /
    • v.40 no.4
    • /
    • pp.320-326
    • /
    • 2007
  • An important related question is whether arginine has influence bone metabolism. The effect of arginine supplements on bone markers and related hormones were studied in young female Sprague-Dawley rats fed either an arginine supplemented diet or control diet. Twenty four rats (body weight 83${\pm}$5 g) were randomly assigned to one of two groups, consuming casein or casein with supplemented arginine diet. All rats were fed on experimental diet and deionized water ad libitum for 9 weeks. Bone formation was measured by serum osteocalcin and alkaline phosphatase (ALP) concentrations. And bone resorption rate was measured by deoxypyridinoline (DPD) crosslinks immunoassay and corrected for creatinine. Serum osteocalcin, growth hormone, estrogen, insulin-like growth factor-1 (IGF-1), parathyroid hormone (PTH) and calcitonin were analyzed using radioimmunoassay kits. The weight gain and mean food intake were not affected regardless of diets. The rats fed arginine-supplemented diet had not significantly different in ALP, osteocalcin, crosslinks value, PTH, estradiol, and IGF-1 compared to those fed casein diet group. The arginine-supplemented group had significantly higher growth hormone and calcitonin than casein group. This study suggests that arginine is beneficial for bone formation in growing female rats. Therefore exposure to diet which rich in arginine early in life may have benefits for bone formation and osteoporosis prevention.

Effects of Asparagus cochinchinensis (Lour.) Merr. on the Stimulation of Osteoblast Differentiation and Inhibition of Osteoclast Generation (천문동 추출물에 의한 조골세포 분화 촉진 및 파골세포 생성 억제효과)

  • Lee, Seung-Youn;Kim, Si-Na;Kim, Jong-Keun
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.37 no.1
    • /
    • pp.16-19
    • /
    • 2008
  • Bone mass in adults decreases with age because of the imbalance between the rate of bone formation and resorption. We performed this study to investigate whether Asparagus cochinchinensis (Lour.) Merr. (ACAE) plays a role in osteoblasts differentiation and osteoclasts formation. Ethanol extract of ACAE showed increase in the differentiation and alkaline phosphatase activity of osteoblasts. Also, it decreased the number of tartrate-resistant acid phosphatase (TRAP)-positive multinucleated cells (OCLs) and TRAP activity. Therefore, ACAE has the potential to prevent bone-related diseases such as osteoporosis by increasing the differentiation of osteoblasts and reducing both the number and activity of osteoclasts.

A CASE REPORT OF MELANOTIC NEUROECTODERMAL TUMOR OF INFANCY (유아에서 발생하는 흑색 신경외배엽성 종양의 치험례)

  • Lee, Sang-Chul;Kim, Yeo-Gab;Ryu, Dong-Mok;Kwak, Yang-Ho;Hwang, Sun-Yong
    • Maxillofacial Plastic and Reconstructive Surgery
    • /
    • v.13 no.1
    • /
    • pp.77-81
    • /
    • 1991
  • The melanotic neuroectodermal tumor of infancy(MNTI) is a rare childhood neoplasm with a clinical presentation. Because of its rapid growth pattern and bone resorption, the lesion can be mistaken for a malignant neoplasm. Although an aggressive growth rate and radiographic appearance, the MNTI almost always behaves in a benign fashion and can be treated with total excision. We presented the MNTI occured in the left maxillary alveolar ridge of 5 month old female infant. showing bluish enlargenent of alveolar mucosa with the displacement of central decidious incisor. And after the surgical excision of the mass, there is no recurrent tendency.

  • PDF

Glandular odontogenic cyst of mandible: case report (하악골에 발생한 선양치성낭의 치험례)

  • Kwon, Jin-Il;Kim, Hyun-Woo;Han, Seon-Hee;Nam, Woong;Cha, In-Ho;Kim, Hyung-Jun
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • v.36 no.3
    • /
    • pp.211-213
    • /
    • 2010
  • Glandular odontogenic cyst (GOC) is an intraoral cyst originated from serre remnants which has incidence of rare frequency. Only 111 cases have been reported since Gardener first introduced it in 1987. The clinical features are the following components: cortical bone thinning, locally aggressive root resorption, non-painful swelling. The following recurrences rate are 64.3% in conservative treatment, and 0% in wide excision for instance, segmental or marginal mandibulectomy. So, its prognosis is similar to that of odontogenic keratocyst and ameloblastoma. Therefore, periodic recall follow ups are essential to detect disease recurrence. Here, we will report the first case of GOC diagnosed in our department considering with references. And we share this treatment experience because these aggessive lesions may be misjudged for simple dental cyst.