1.A Multicenter, Randomized, Controlled Trial for Assessing the Usefulness of Suppressing Thyroid Stimulating Hormone Target Levels after Thyroid Lobectomy in Low to Intermediate Risk Thyroid Cancer Patients (MASTER): A Study Protocol
Eun Kyung LEE ; Yea Eun KANG ; Young Joo PARK ; Bon Seok KOO ; Ki-Wook CHUNG ; Eu Jeong KU ; Ho-Ryun WON ; Won Sang YOO ; Eonju JEON ; Se Hyun PAEK ; Yong Sang LEE ; Dong Mee LIM ; Yong Joon SUH ; Ha Kyoung PARK ; Hyo-Jeong KIM ; Bo Hyun KIM ; Mijin KIM ; Sun Wook KIM ; Ka Hee YI ; Sue K. PARK ; Eun-Jae JUNG ; June Young CHOI ; Ja Seong BAE ; Joon Hwa HONG ; Kee-Hyun NAM ; Young Ki LEE ; Hyeong Won YU ; Sujeong GO ; Young Mi KANG ;
Endocrinology and Metabolism 2021;36(3):574-581
Background:
Postoperative thyroid stimulating hormone (TSH) suppression therapy is recommended for patients with intermediate- and high-risk differentiated thyroid cancer to prevent the recurrence of thyroid cancer. With the recent increase in small thyroid cancer cases, the extent of resection during surgery has generally decreased. Therefore, questions have been raised about the efficacy and long-term side effects of TSH suppression therapy in patients who have undergone a lobectomy.
Methods:
This is a multicenter, prospective, randomized, controlled clinical trial in which 2,986 patients with papillary thyroid cancer are randomized into a high-TSH group (intervention) and a low-TSH group (control) after having undergone a lobectomy. The principle of treatment includes a TSH-lowering regimen aimed at TSH levels between 0.3 and 1.99 μIU/mL in the low-TSH group. The high-TSH group targets TSH levels between 2.0 and 7.99 μIU/mL. The dose of levothyroxine will be adjusted at each visit to maintain the target TSH level. The primary outcome is recurrence-free survival, as assessed by neck ultrasound every 6 to 12 months. Secondary endpoints include disease-free survival, overall survival, success rate in reaching the TSH target range, the proportion of patients with major cardiovascular diseases or bone metabolic disease, the quality of life, and medical costs. The follow-up period is 5 years.
Conclusion
The results of this trial will contribute to establishing the optimal indication for TSH suppression therapy in low-risk papillary thyroid cancer patients by evaluating the benefit and harm of lowering TSH levels in terms of recurrence, metabolic complications, costs, and quality of life.
2.A Multicenter, Randomized, Controlled Trial for Assessing the Usefulness of Suppressing Thyroid Stimulating Hormone Target Levels after Thyroid Lobectomy in Low to Intermediate Risk Thyroid Cancer Patients (MASTER): A Study Protocol
Eun Kyung LEE ; Yea Eun KANG ; Young Joo PARK ; Bon Seok KOO ; Ki-Wook CHUNG ; Eu Jeong KU ; Ho-Ryun WON ; Won Sang YOO ; Eonju JEON ; Se Hyun PAEK ; Yong Sang LEE ; Dong Mee LIM ; Yong Joon SUH ; Ha Kyoung PARK ; Hyo-Jeong KIM ; Bo Hyun KIM ; Mijin KIM ; Sun Wook KIM ; Ka Hee YI ; Sue K. PARK ; Eun-Jae JUNG ; June Young CHOI ; Ja Seong BAE ; Joon Hwa HONG ; Kee-Hyun NAM ; Young Ki LEE ; Hyeong Won YU ; Sujeong GO ; Young Mi KANG ;
Endocrinology and Metabolism 2021;36(3):574-581
Background:
Postoperative thyroid stimulating hormone (TSH) suppression therapy is recommended for patients with intermediate- and high-risk differentiated thyroid cancer to prevent the recurrence of thyroid cancer. With the recent increase in small thyroid cancer cases, the extent of resection during surgery has generally decreased. Therefore, questions have been raised about the efficacy and long-term side effects of TSH suppression therapy in patients who have undergone a lobectomy.
Methods:
This is a multicenter, prospective, randomized, controlled clinical trial in which 2,986 patients with papillary thyroid cancer are randomized into a high-TSH group (intervention) and a low-TSH group (control) after having undergone a lobectomy. The principle of treatment includes a TSH-lowering regimen aimed at TSH levels between 0.3 and 1.99 μIU/mL in the low-TSH group. The high-TSH group targets TSH levels between 2.0 and 7.99 μIU/mL. The dose of levothyroxine will be adjusted at each visit to maintain the target TSH level. The primary outcome is recurrence-free survival, as assessed by neck ultrasound every 6 to 12 months. Secondary endpoints include disease-free survival, overall survival, success rate in reaching the TSH target range, the proportion of patients with major cardiovascular diseases or bone metabolic disease, the quality of life, and medical costs. The follow-up period is 5 years.
Conclusion
The results of this trial will contribute to establishing the optimal indication for TSH suppression therapy in low-risk papillary thyroid cancer patients by evaluating the benefit and harm of lowering TSH levels in terms of recurrence, metabolic complications, costs, and quality of life.
3.Characterization of Peroxiredoxins in the Gray matter in the spinal cord after Acute Immobilization Stress.
Nam Hyun PAEK ; Seung Soo KWAK ; Dong Seok LEE ; Young Ho LEE
Journal of the Korean Society of Traumatology 2006;19(2):105-112
PURPOSE: Many stresses produce reactive oxygen species and bring about mechanism of antioxidant reaction. Cytokine and a neurotransmitter through the cell membrane, as well as signal transduction through the cell membrane, are used for various pathological condition of the brain, such as neurodegenerative disease. There are several antioxidant enzymes in cells (superoxcide dismutase, glutathion peroxidasae, peroxiredoxin catalase, etc.) METHODS: This study used single- or double-label immunohistochemical techniques to analyze mouse spinal neuron cells expressing Prx I and Prx III after acute mobilization stress. RESULTS: Prx I was observed in dendritic cell of the gray matter of the spinal cord, and Prx III was observed in the cytoplasm of the GM of the spinal cord. CONCLUSION: The results of this study will help to explain differences of expression in the distributions of the peroxiredoxin enzymes of the spinal cord.
Animals
;
Brain
;
Catalase
;
Cell Membrane
;
Cytoplasm
;
Dendritic Cells
;
Immobilization*
;
Mice
;
Neurodegenerative Diseases
;
Neurons
;
Neurotransmitter Agents
;
Peroxiredoxins*
;
Reactive Oxygen Species
;
Signal Transduction
;
Spinal Cord*
4.Characterization of Peroxiredoxins in the Gray matter in the spinal cord after Acute Immobilization Stress.
Nam Hyun PAEK ; Seung Soo KWAK ; Dong Seok LEE ; Young Ho LEE
Journal of the Korean Society of Traumatology 2006;19(2):105-112
PURPOSE: Many stresses produce reactive oxygen species and bring about mechanism of antioxidant reaction. Cytokine and a neurotransmitter through the cell membrane, as well as signal transduction through the cell membrane, are used for various pathological condition of the brain, such as neurodegenerative disease. There are several antioxidant enzymes in cells (superoxcide dismutase, glutathion peroxidasae, peroxiredoxin catalase, etc.) METHODS: This study used single- or double-label immunohistochemical techniques to analyze mouse spinal neuron cells expressing Prx I and Prx III after acute mobilization stress. RESULTS: Prx I was observed in dendritic cell of the gray matter of the spinal cord, and Prx III was observed in the cytoplasm of the GM of the spinal cord. CONCLUSION: The results of this study will help to explain differences of expression in the distributions of the peroxiredoxin enzymes of the spinal cord.
Animals
;
Brain
;
Catalase
;
Cell Membrane
;
Cytoplasm
;
Dendritic Cells
;
Immobilization*
;
Mice
;
Neurodegenerative Diseases
;
Neurons
;
Neurotransmitter Agents
;
Peroxiredoxins*
;
Reactive Oxygen Species
;
Signal Transduction
;
Spinal Cord*
5.The Prevalence of Maturity Onset Diabetes of the Young(MODY) 3 in Children with Type 2 Diabetes Mellitus.
In Kyoung CHOI ; Duk Hee KIM ; Ho Seong KIM ; Nam HUH ; Sang Hyun PAEK ; Seoung Young JUNG
Korean Journal of Pediatrics 2004;47(6):641-646
PURPOSE: Maturity-onset diabetes of the young(MODY) is a subtype of type 2 diabetes defined by autosomal dominant mode of inheritance, onset of diabetes usually before the age of 25 yrs, and a primary defect in the function of the beta cells of the pancreas. MODY3 is known as the most common form and is caused by mutations in hepatocyte nuclear factor(HNF)-1alpha. We examined the prevalence of MODY3 in children with type 2 diabetes mellitus(DM). METHODS: Children with type 2 DM(N=17) and their family members with type 2 DM(N=5) were enrolled. Inclusion criteria for the children were fasting C-peptide and postprandial C-peptide more than 1.0 ng/mL and 1.5 ng/mL respectively, familial type 2 DM in at least two generations, and body mass index(BMI)(kg/m(2)) less than 95th percentile. Genomic DNA was extracted from blood samples. We analyzed HNF-1alpha for mutation by DNA microarray method and direct sequencing. RESULTS: We found one case with a mutation of the promoter region of HNF-1alpha(5'-ctaGGCTAGTGGGGTTTTGCGGGGGCAGTGGGTGCAAGG-3') in one child's family member among 22 children and adult subjects with type 2 DM. CONCLUSION: Although we found a mutation of HNF-1alpha in an adult family member with type 2 DM, we did not find this mutation in a child with type 2 DM. The further investigation of MODY in children, including other types, is required.
Adult
;
C-Peptide
;
Child*
;
Diabetes Mellitus, Type 2*
;
DNA
;
Family Characteristics
;
Fasting
;
Hepatocyte Nuclear Factor 1-alpha
;
Hepatocytes
;
Humans
;
Oligonucleotide Array Sequence Analysis
;
Pancreas
;
Prevalence*
;
Promoter Regions, Genetic
;
Wills
6.Decreased Formation of Nitric Oxide in Rats Treated with FK506.
Kwon JUNG ; Soo Wan KIM ; Jong Un LEE ; Yun Woong PAEK ; Chung Ho YEUM ; Myong Yun NAH ; Nam Ho KIM ; Chong Myung KANG ; Ki Chul CHOI
Korean Journal of Nephrology 2001;20(1):36-42
The present study was aimed at investigating whether FK506 alters the regulation of nitric oxide(NO) system. Male Sprague-Dawley rats were treated with FK506(1 mg/kg/day, i.m.) for 3 weeks. Control group was without treatment of FK506. Plasma levels and urinary excretion of NO metabolites(nitrite/nitrate, NOx) were measured. The protein expression of NO synthases(NOS) and tissue contents of NOx were determined in the kidney and thoracic aorta. The aorta was also examined of its changes in isometric tension in responses to acetylcholine and sodium nitroprusside. The arterial pressure did not significantly differ between FK506-treated and control groups. Plasma NOx levels remained unaltered, while urinary NOx excretion was significantly decreased in FK 506-treated group. Tissue contents of NOx were significantly decreased, although the expression of ecNOS and iNOS proteins was significantly altered neither in the kidney nor in the aorta. Acetylcholine-induced relaxation of the isolated aortic ring was significantly attenuated, whereas sodium nitroprusside-induced relaxation was not significantly affected. These results suggest that FK506 decreases the tissue contents of NO, without significantly affecting the expression of NOS.
Acetylcholine
;
Animals
;
Aorta
;
Aorta, Thoracic
;
Arterial Pressure
;
Humans
;
Kidney
;
Male
;
Nitric Oxide*
;
Nitroprusside
;
Plasma
;
Rats*
;
Rats, Sprague-Dawley
;
Relaxation
;
Sodium
;
Tacrolimus*
7.Antispastic Effect of Transcutaneous Electrical Nerve Stimulation and Acupuncture in the Stroke Patients.
Cheon Ho PAEK ; Seung Wook SO ; Hee Sang KIM ; Kyung Hoi AHN ; Sang Soo NAM ; Seon Koo PARK
Journal of the Korean Academy of Rehabilitation Medicine 1997;21(6):1088-1097
Spasticity is common stroke in patients, and its management has been considered as one of the major problems in stroke rehabilitation. The goal of this study was to determine if transcutaneous electrical nerve stimulation(TENS) and acupuncture would reduce the muscle spasticity. To estimate the efficacy of electrical stimulation for the treatment of spasticity TENS(100 Hz, asymmetric bipolar pulse current) was applied to the skin over the extensor muscles of spastic limbs for 20 minutes, once a day in six stroke patients. In addition, acupuncture was also applied to the acupoints of extensor muscles of all extremities and face for 20 minutes twice a day to determine the efficacy of acupuncture for the treatment of spasticity in six stroke patients. As controls subjects, six stroke patients were examined without TENS or acupuncture treatment. In experimental groups, the efficacy of treatment was measured 1, 5, 10, 15 days and 20 days after treatment with either TENS or acupuncture using the spasticity measurement methods (modified Ashworth scale, ankle clonus score, and H/M ratio). Based on the results from the present study, we have concluded that the H/M ratios of affected spastic limbs were significantly higher than those of unaffected limbs (p<0.05). TENS and acupuncture therapies lessened the spasticity of affected limbs of stroke patients when measured with the modified Ashworth scale however not with the H/M ratios nor with the ankle clonus scores.
Acupuncture Points
;
Acupuncture*
;
Ankle
;
Electric Stimulation
;
Extremities
;
Humans
;
Muscle Spasticity
;
Muscles
;
Rehabilitation
;
Skin
;
Stroke*
;
Transcutaneous Electric Nerve Stimulation*
8.Perceived Occupational Psychosocial Stress and Work-related Musculoskeletal Disorders Among Workers Using Video Display Terminals.
Ho Jang KWON ; Mi Na HA ; Dork Ro YUN ; Soo Hun CHO ; Daehee RANG ; Yeong Su JU ; Do Myung PAEK ; Nam Jong PAEK
Korean Journal of Occupational and Environmental Medicine 1996;8(3):570-577
A cross-sectional study was conducted to assess the association between perceived occu-pational psychosocial stress at work and the work-related musculoskeletal disorders (WRMSD) among employees using video display terminals. The study included 111 female telecommunication employees from three companies at ChungBuk province. Cases of WRMSD were defined using symptom questionnaire and physical examination conducted by rehabilitation specialist. Information on demographics, individual factors, and perceived psychosocial stress, were obtained by self-administered questionnaire. For assessing perceived psychosocial stress, we used variables from 'job strain model' proposed by Karasek. Associations between perceived psychosocial stress and WRMSD were assessed by multiple logistic regression models. Forty nine (44% to the total) subjects met our operational definition for WRMSD. Age, seniority, housing load were not associated with WRMSD. Perceived psychosocial stress was associated with WRMSD [odds ratio=3.28, 95% confidence interval: 1.05-10.19]. This study suggests that perceived occupational psychosocial stress is related to the prevalence of WRMSD.
Chungcheongbuk-do
;
Computer Terminals*
;
Cross-Sectional Studies
;
Demography
;
Female
;
Housing
;
Humans
;
Logistic Models
;
Physical Examination
;
Prevalence
;
Questionnaires
;
Rehabilitation
;
Specialization
;
Telecommunications
9.Clinical Experiences with the Soft Contact Lens.
Journal of the Korean Ophthalmological Society 1976;17(1):59-64
The author had a clinical experience with Bausch and Lomb Soflens in a total of 171 patients(271 eyes) from April 1974 to October 1975. Among all of the patients, 163 have used Soflens for an optical purpose (myopia and aphakia) and 8 for a therapeutic purpose. 32 patients(64 eyes) had worn hard contact lenses without success, as severe foreign body sensation, lacrimation and eye pain developed. But in the patients with Solfens, the foreign body sensation proved to be so mild, that most of the patients were able to wear Soflens for 14 hours per day. Also most of these cases wearing Soflens for the therapeutic purpose, the patients bullous keratopathy, corneal erosions, fillamentary keratitis, exposure keratitis, essential corneal edema or Stevens-Johnson syndrome, and showed good results. Other advantage of Soflens are: it is less moval on the cornea than hard contact lenses, it also does not come off easily. It gives stable vision for the drwan-up pupil after cataract surgery. After Soflens wearing, a corneal damage or other complications has not showed except in 8 cases, where a ocular discomfort was noted.
Cataract
;
Contact Lenses
;
Contact Lenses, Hydrophilic*
;
Cornea
;
Corneal Edema
;
Eye Pain
;
Foreign Bodies
;
Humans
;
Keratitis
;
Pupil
;
Sensation
;
Stevens-Johnson Syndrome
10.Two Cases of Blepharitis Caused by Pubic Lice.
Nam Ho PAEK ; Jae Ho KIM ; Sang Wook RHEE
Journal of the Korean Ophthalmological Society 1976;17(2):187-190
Two unusual cases (5yr. old girl and boy) of seborrhoic marginal blepharitis caused by infestation of pubiclice (Phthirus pubis) are described. Many pubic lice and their ova clung to the cilia of upper lid margin were identified as the cause of disease. Prompt improvement of marginal blepharitis limited only on upper lids of both eyes was brought by the removal of lice and epilation of cilia which there are many ova adhered on. These two cases have no interrelationship in possible contact or source. Their fainily history and envirvmnental studies showed in negative resuhs. Careful slit-lamp examination would be neccessary as a routine procedure in blepharitis cases.
Blepharitis*
;
Cilia
;
Female
;
Hair Removal
;
Humans
;
Ovum
;
Phthiraptera*

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