2.The effect of subtenon injection of methylprednisolone acetate on the breakdown of blood retinal barrier after cryotherapy.
Jong Hoon LEE ; Seong Joon KIM ; Hum CHUNG
Korean Journal of Ophthalmology 1995;9(1):1-6
Using computerized vitreous fluorophotometry (VFP, Fluorotron(TM)), we examined the effect of cryotherapy on the blood retinal barrier (BRB) and the effect of subtenon injection of methylprednisolone acetate (Depomedrol(R)). In experiment 1, the right eyes of the 13 pigmented rabbits were treated with heavy cryotherapy after baseline VFP readings. The freezes were applied at 6 places in each quadrant around the equator are in two rows, a total of 24 places circumferentially. The left eyes were reserved as controls. In 6 rabbits (cryo with steroid group), Depomedrol(R) 10 mg of Depomedrol was injected into subtenon space after cryotherapy. The other 7 rabbits were treated with cryotherapy only (cryo only group). The VFP readings were taken 1, 3, 5, and 7 days, 2, 3, 5, and 7 weeks after cryotherapy. Cryotherapy increased the breakdown of BRB significantly. The peak VFP readings were obtained 5 days after cryotherapy in the cryo only group and 7 days after cryotherapy in the cryo with steroid group. In the cryo only group, the severity of the breakdown of BRB was higher than in the cryo with steroid group, and the increased VFP readings could not be normalized until 7 weeks after cryotherapy. In experiment 2, both eyes of the 8 pigmented rabbits were treated with medium cryotherapy after baseline VFP readings. The freezes were applied at 3 places in the superior temporal quadrant and at 3 places in the superior nasal quadrant, a total of 6 places. Depomedrol(R) 10 mg was injected into subtenon space after cryotherapy in the right eyes only. The VFP readings were taken 1, 3, 5, 7, 10, and 14 days after cryotherapy. In this experiment, cryotherapy did not increase the breakdown of BRB. But in the right eye, the severity of the breakdown of BRB was significantly lower than in the left eye 7 and 10 days after cryotherapy. These results suggest that Depomedrol(R) can decrease the severity of the breakdown of BRB after cryotherapy, and may be useful in the prevention of proliferative vitreoretinopathy (PVR).
Animals
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Anti-Inflammatory Agents/*pharmacology
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Blood-Retinal Barrier/*drug effects
;
Capillary Permeability
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*Cryosurgery/adverse effects
;
Fascia
;
Fluorophotometry
;
Injections
;
Methylprednisolone/*analogs & derivatives/pharmacology
;
Orbit
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Rabbits
;
Retina/*drug effects/surgery
;
Vitreoretinopathy, Proliferative/prevention & control
3.Prophylaxis and treatment of chronic graft versus host disease.
Ke HUANG ; Yang LI ; Shao-liang HUANG ; Jian-pei FANG ; Dun-hua ZHOU ; Chun CHEN
Chinese Journal of Pediatrics 2005;43(3):174-177
OBJECTIVEChronic graft versus host disease (cGVHD) is the most common late complication after allogeneic hematopoietic stem cell transplantation (allo-HSCT) and it represents the major cause of mortality in long-term survivors. Over the past decade, although conventional therapy has achieved complete responses in approximately 50% of patients, the prophylaxis and treatment of cGVHD are still not satisfactory. In the late years, utilization of new immunosuppressant such as tacrolimus (FK506), mycophenolate mofetil (MMF) on cGVHD improved the curative effects. This study tried to analyze the results of combination of methylprednisolone (MP), MMF and FK506 or cyclosporine A (CSA) as immunosuppressive therapies for cGVHD and to explore the effective regimen for children.
METHODSForty-five patients received allo-HSCT. Among them 32 received UCBT and 13 received PBSCT. The conditional regimen mainly consisted of busalphan, cyclophosphamide, antihuman thymocyte globulin, fludarabin, melphalan, thiotepa and total lymph node irradiation. Prophylaxis of GVHD consisted of CSA, MP and MMF. Patients with cGVHD received a regimen with combination of MP, MMF and FK506 or CSA.
RESULTSSeventeen out of 32 patients who received UCBT were engrafted. while 9 out of 13 patients who received PBSCT were engrafted. Nine cases of the 30 engrafted patients developed cGVHD (morbidity 30%). Among the 17 patients who received UCBT, 3 developed cGVHD (18%). Among the 13 patients who received PBSCT, 6 developed cGVHD (46%). Six cGVHD continued from aGVHD (6/9). One patient was given CSA plus MMF, and 8 were given three-drug regimen with MP, MMF and FK506. The overall response rate was 100%. Two patients died of CMV-IP or septicemia (mortality 20%). Seven (78%) patients survived (event free survival, EFS) longer than 3 years. The side effects included hepatotoxicity, nephrotoxicity, hypertension, articular capsulitis and arrhythmia. The main complication and the major causes of death were infection.
CONCLUSIONThe incidence of cGVHD is low in children. The incidence of cGVHD after PBSCT is higher than that after UCBT. aGVHD is a highly dangerous factor. Combined therapy of MP plus MMF and FK506 or CSA is safe and effective for the treatment of cGVHD in children.
Child ; Child, Preschool ; Chronic Disease ; Drug Therapy, Combination ; Female ; Graft vs Host Disease ; drug therapy ; epidemiology ; prevention & control ; Hematopoietic Stem Cell Transplantation ; adverse effects ; Humans ; Incidence ; Male ; Methylprednisolone ; administration & dosage ; Mycophenolic Acid ; administration & dosage ; analogs & derivatives ; Tacrolimus ; administration & dosage
4.Gemcitabine combined with cisplatin and methylprednisolone sodium succinate in chemotherapy for relapsed or refractory T cell non-Hodgkin lymphoma.
Shu ZHAO ; Qing-yuan ZHANG ; Wen-zhou SUN
Chinese Journal of Oncology 2010;32(4):316-316
Adult
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Aged
;
Antineoplastic Combined Chemotherapy Protocols
;
therapeutic use
;
Cisplatin
;
administration & dosage
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Deoxycytidine
;
administration & dosage
;
analogs & derivatives
;
Female
;
Humans
;
Lymphoma, T-Cell
;
drug therapy
;
pathology
;
Male
;
Methylprednisolone Hemisuccinate
;
administration & dosage
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Middle Aged
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Neoplasm Recurrence, Local
;
drug therapy
;
Remission Induction
5.Therapeutic window of mycophenolate mofetil for preventing acute graft rejection following renal transplantation.
Lixin YU ; Minjie ZHOU ; Min LUO
Journal of Southern Medical University 2014;34(12):1842-1845
OBJECTIVETo determine the optimal dose range (therapeutic window) of mycophenolate mofetil (MMF) for preventing acute graft rejection following renal transplantation.
METHODSThe trough concentration of MMF (MPA-C0) at 12 h after oral administration of the drug (two doses daily given at an interval of 12 h) was monitored in 110 renal transplant recipients within a month, in 2-3 months, and over 4 months after the transplantation using EMIT method. The occurrence of acute graft rejection and drug toxicity were observed in all the patients during the one-year follow-up.
RESULTSs The incidence of acute graft rejection after transplantation was 13.64% (15/110) in these patients. Drug toxicity and complications occurred in 32.73% (36/110) of the patients, including 12 cases with reduced white blood cell counts, 10 with MMF cid-associated diarrhea, 10 with infection, 4 with liver function damage. Acute rejection was successfully reversed after methylprednisolone treatment and drug toxicity was managed by corresponding treatment and adjustment of MMF dose. No deaths or graft removal occurred in these patients. The ROC curve showed that a MPA-C0 of 1.40-2.80 mg/L was optimal in preventing acute rejection after the transplantation and reducing adverse drug effects.
CONCLUSIONMonitoring MPA-C0 and individualized MMF dosing help to prevent acute graft rejection, reducing drug toxicity and complications, and improving graft survival rate after renal transplantation.
Graft Rejection ; drug therapy ; prevention & control ; Graft Survival ; Humans ; Immunosuppressive Agents ; administration & dosage ; therapeutic use ; Kidney Transplantation ; Methylprednisolone ; Mycophenolic Acid ; administration & dosage ; analogs & derivatives ; therapeutic use ; Survival Rate ; Time Factors
6.Temozolomide-Associated Bronchiolitis Obliterans Organizing Pneumonia Successfully Treated with High-Dose Corticosteroid.
Tae Ok KIM ; In Jae OH ; Hyun Wook KANG ; Su Young CHI ; Hee Jung BAN ; Yong Soo KWON ; Kyu Sik KIM ; Yu Il KIM ; Sung Chul LIM ; Young Chul KIM
Journal of Korean Medical Science 2012;27(4):450-453
Temozolomide is an oral alkylating agent with clinical activity against glioblastoma multiforme (GM). It is generally well-tolerated and has few pulmonary side effects. We report a case of temozolomide-associated brochiolitis obliterans organizing pneumonia (BOOP) requiring very high-dose corticosteroid treatment. A 56-yr-old woman presented with a 2-week history of exertional dyspnea. For the treatment of GM diagnosed 4 months previously, she had undergone surgery followed by chemoradiotherapy, and then planned adjuvant chemotherapy with temozolomide. After the 1st cycle, progressive dyspnea was gradually developed. Chest radiograph showed diffuse patchy peribronchovascular ground-glass opacities in both lungs. Conventional dose of methylprednisolone (1 mg/kg/day) was begun for the possibility of BOOP. Although transbronchial lung biopsy findings were compatible with BOOP, the patient's clinical course was more aggravated until hospital day 5. After the dose of methylprednisolone was increased (500 mg/day for 5 days) radiologic findings were improved dramatically.
Antineoplastic Agents, Alkylating/*adverse effects/therapeutic use
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Cryptogenic Organizing Pneumonia/*chemically induced/*drug therapy/radiography
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Dacarbazine/adverse effects/*analogs & derivatives/therapeutic use
;
Dyspnea/etiology
;
Female
;
Glioblastoma/drug therapy/radiography
;
Glucocorticoids/*therapeutic use
;
Humans
;
Methylprednisolone/therapeutic use
;
Middle Aged
;
Tomography, X-Ray Computed
7.A Pilot Study of Calcineurin Inhibitors (CNIs) and Steroid Avoidance Immunosuppressive Protocol among Living Donor Kidney Transplant Recipients.
Henry K OH ; Philip DING ; Nancy A SATMARY
Yonsei Medical Journal 2004;45(6):1143-1148
Calcineurin Inhibitors (CNIs) and Corticosteroids have been the main immunosuppressive agents in solid organ transplantation. Many studies have confirmed the positive impacts of withdrawal/avoidance of these agents, separately, on their side effect profiles. A pilot study was performed avoiding both agents among low-immunological-risk living donor kidney transplant recipients at a single center. Seventeen recipients were maintained on the double avoidance protocol during the study period beginning July 2002 through December 2003. Three rejection episodes occurred (out of ten) among related donor kidney recipients and six episodes (out of seven) among unrelated donor kidney recipients. Although most of the rejections were reversed with a short course of corticosteroids, the protocol was revised to exclude the unrelated donor kidney recipients. There were higher incidences of wound complications among recipients who received the initial loading dose of Sirolimus. Double avoidance of CNIs and corticosteroids is possible in living donor kidney transplant recipients with an acceptable incidence of rejection. Proper management of the side effects of Sirolimus could further minimize the incidence of rejection. A multi-center randomized study is recommended in order to recognize the benefits of avoiding CNIs and corticosteroids in renal transplant recipients.
Adrenal Cortex Hormones
;
Adult
;
Aged
;
Antibodies, Monoclonal/*therapeutic use
;
Calcineurin/antagonists & inhibitors
;
Chimeric Proteins/*therapeutic use
;
Drug Therapy, Combination
;
Enzyme Inhibitors
;
Female
;
Glucocorticoids/*therapeutic use
;
Humans
;
Immunosuppressive Agents/*therapeutic use
;
*Kidney Transplantation
;
*Living Donors
;
Male
;
Methylprednisolone/*therapeutic use
;
Middle Aged
;
Mycophenolic Acid/*analogs & derivatives/*therapeutic use
;
Pilot Projects
;
Sirolimus/*therapeutic use
8.Pregabalin as a Neuroprotector after Spinal Cord Injury in Rats: Biochemical Analysis and Effect on Glial Cells.
Kee Yong HA ; Eugene CARRAGEE ; Ivan CHENG ; Soon Eok KWON ; Young Hoon KIM
Journal of Korean Medical Science 2011;26(3):404-411
As one of trials on neuroprotection after spinal cord injury, we used pregabalin. After spinal cord injury (SCI) in rats using contusion model, we observed the effect of pregabalin compared to that of the control and the methylprednisolone treated rats. We observed locomotor improvement of paralyzed hindlimb and body weight changes for clinical evaluation and caspase-3, bcl-2, and p38 MAPK expressions using western blotting. On histopathological analysis, we also evaluated reactive proliferation of glial cells. We were able to observe pregabalin's effectiveness as a neuroprotector after SCI in terms of the clinical indicators and the laboratory findings. The caspase-3 and phosphorylated p38 MAPK expressions of the pregabalin group were lower than those of the control group (statistically significant with caspase-3). Bcl-2 showed no significant difference between the control group and the treated groups. On the histopathological analysis, pregabalin treatment demonstrated less proliferation of the microglia and astrocytes. With this animal study, we were able to demonstrate reproducible results of pregabalin's neuroprotection effect. Diminished production of caspase-3 and phosphorylated p38 MAPK and as well as decreased proliferation of astrocytes were seen with the administration of pregabalin. This influence on spinal cord injury might be a possible approach for achieving neuroprotection following central nervous system trauma including spinal cord injury.
Animals
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Apoptosis/drug effects
;
Astrocytes/drug effects/pathology
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Blotting, Western
;
Body Weight/drug effects
;
Caspase 3/genetics
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Cell Proliferation
;
Fluorescent Antibody Technique
;
Gene Expression
;
Hindlimb/drug effects/pathology/physiopathology
;
Inflammation
;
Male
;
Methylprednisolone/therapeutic use
;
Microglia/drug effects/pathology
;
Motor Activity/drug effects
;
Neuroglia/*drug effects/pathology
;
Neuroprotective Agents/*therapeutic use
;
Paralysis/drug therapy
;
Proto-Oncogene Proteins c-bcl-2/genetics
;
Rats
;
Rats, Sprague-Dawley
;
Spinal Cord Injuries/*drug therapy/pathology
;
gamma-Aminobutyric Acid/*analogs & derivatives/therapeutic use
;
p38 Mitogen-Activated Protein Kinases/genetics
9.5-Fluorouracil-induced leukoencephalopathy in patients with breast cancer.
Sung Min CHOI ; Seung Han LEE ; Yong Seok YANG ; Byeong Chae KIM ; Myeong Kyu KIM ; Ki Hyun CHO
Journal of Korean Medical Science 2001;16(3):328-334
The purpose of this study is to determine the characteristic clinical features, radiologic findings, and precipitating and prognostic factors in the patients with breast cancer and with 5-Fluorouracil (5-FU)-induced leukoencephalopathy. We reviewed the medical records of six breast cancer patients who developed leukoencephalopathy after chemotherapy which included 5-FU and also evaluated thorough neurological examinations including mini-mental status examination, cerebrospinal fluid studies, brain images and brain biopsies. Six patients exhibited slowly progressing neurologic symptoms characterized by the impairment of cognitive function, abulia, ataxic gait, and/or akinetic mutism. None of the patients had any specific causes or etiologic factors for leukoencephalopathy. Brain MRI in all patients showed diffuse periventricular white matter changes in the T2-weighted MR image. Brain biopsy in Patient 1 showed fragmented axonal fiber and minimally deprived myelination with many scattered macrophages. Five patients who treated with steroids at the onset of neurological symptoms showed clinical improvement, regardless of their age, sex, the pathology and stage of breast cancer, or the total dosage of chemotherapeutic agents. We conclude that leukoencephalopathy in these cases could be attributable to 5-FU neurotoxicity and suggest that the administration of steroids might be the treatment of choice.
Adenocarcinoma, Mucinous/complications/drug therapy
;
Adult
;
Anti-Inflammatory Agents, Steroidal/therapeutic use
;
Antineoplastic Agents/adverse effects/therapeutic use
;
Brain/*drug effects/metabolism/radiography
;
Breast Neoplasms/*complications/drug therapy
;
Carcinoma, Infiltrating Duct/*complications/drug therapy
;
Cyclophosphamide/adverse effects/therapeutic use
;
Epirubicin/adverse effects/therapeutic use
;
Female
;
Fluorouracil/*adverse effects/analogs & derivatives/therapeutic use
;
Glucocorticoids, Synthetic/therapeutic use
;
Human
;
Magnetic Resonance Imaging
;
Methylprednisolone/therapeutic use
;
Middle Age
;
Nervous System Diseases/chemically induced/drug therapy/metabolism/radiography
;
Prednisolone/therapeutic use