We made clinical and statistical observation of low birth weight infants who were delivered at Keimyung University hospital during the 2 years and 4 months period from March, 1979 through July, 1981. The results obtained were as follows: 1) The sex ratio for live birth infants, male to female, was 1.28:1, and low-birth-weight infants was 0.96:1. The incidence of low birth weight infants was 66.5 per 1,000 live births. 2) The etiology of low-birth-weight infants, in order of frequency was: 1st, multiple pregncy, 2nd , permature ruptupe of membrane, 3rd, toxemia, 4th malposition of fotus and 5th , plaoente previa and abruptio placents. 3) The mortality rate for low-birth-weight infants was 123.5/1,000 low-birth-weight infants. 4) Premature percentage of low-birth-weight infants was 61.7%. 5) A sharp decrease in mortality rate was observed when infants weight over 1,750 grams at birth, and over 35 weeks gestation period. Therefore delayed delivery was recommendec. 6) Of all deaths of low-birth-weight infants in the nuracry, 85.9% died within 24 hours of birth, and 82.9% within 48 hours of birth. 7) There was no difference between male and female infants regarding mean helight, mean head circumference and mena chest cincumference according to weight.
Female ; Head ; Humans ; Incidence ; Infant* ; Infant, Low Birth Weight* ; Infant, Newborn ; Live Birth ; Male ; Membranes ; Mortality ; Parturition ; Pregnancy ; Sex Ratio ; Thorax ; Toxemia

We made clinical and statistical observation of low birth weight infants who were delivered at Keimyung University hospital during the 2 years and 4 months period from March, 1979 through July, 1981. The results obtained were as follows: 1) The sex ratio for live birth infants, male to female, was 1.28:1, and low-birth-weight infants was 0.96:1. The incidence of low birth weight infants was 66.5 per 1,000 live births. 2) The etiology of low-birth-weight infants, in order of frequency was: 1st, multiple pregncy, 2nd , permature ruptupe of membrane, 3rd, toxemia, 4th malposition of fotus and 5th , plaoente previa and abruptio placents. 3) The mortality rate for low-birth-weight infants was 123.5/1,000 low-birth-weight infants. 4) Premature percentage of low-birth-weight infants was 61.7%. 5) A sharp decrease in mortality rate was observed when infants weight over 1,750 grams at birth, and over 35 weeks gestation period. Therefore delayed delivery was recommendec. 6) Of all deaths of low-birth-weight infants in the nuracry, 85.9% died within 24 hours of birth, and 82.9% within 48 hours of birth. 7) There was no difference between male and female infants regarding mean helight, mean head circumference and mena chest cincumference according to weight.
Female ; Head ; Humans ; Incidence ; Infant* ; Infant, Low Birth Weight* ; Infant, Newborn ; Live Birth ; Male ; Membranes ; Mortality ; Parturition ; Pregnancy ; Sex Ratio ; Thorax ; Toxemia

Cumulative trauma disorders were surveyed in a cross-sectional study of 100 male ship yard workers and 43 male office workers. And baseline checklist for risk assessment of cumulative trauma disorders was applicated in a ship making process. Cases of cumulative trauma disorders were defined using physical examinations and electronic diagnostic methods. Data on demographics, individual factors (medical condition), work organization and psychosocial aspects of work were obtained by questionnaire. Association between the above factors and cumulative trauma disorders were assessed by multiple logistic regression models. 29(29 %) participants of male shipyard workers and 4(9.2 %) study subjects of male office workers met our case definitions for cumulative trauma disorders. The myofascial pain syndrome of neck muscles(12 % of participants) and carpal tunnel syndrome(5 % of participants) were the major two medical conditions in shipyard workers. The odds of male shipyard workers for cumulative trauma disorders to male office workers was 3.15 after adjustment of age(95 % C.I. :2.25-5.44). And the variables such as duration of present job, HIVD condition, and surges in workload were associated at least one of the cumulative trauma disorders in the final models (p<0.05) . This study indicates that work related upper extremity musculoskeletal disorders are relatively common among shipyard workers, and shows that the psychosocial factors is not likely to be related to the occur rences of these disorders in heavy workers. Also we developed baseline checklist for risk assessment of cumulative trauma disorders. The checklist was unique in that its expected users were industrial hygienists and occupational healthing nurses who did not have much ergonomic background and in that it was targeted to Korean workers in various types. As the first application of the checklist, shipyard workers were evaluated.
Checklist* ; Cross-Sectional Studies ; Cumulative Trauma Disorders* ; Demography ; Humans ; Logistic Models ; Male ; Myofascial Pain Syndromes ; Neck ; Occupational Health ; Physical Examination ; Psychology ; Questionnaires ; Risk Assessment* ; Ships ; Upper Extremity

Cumulative trauma disorders were surveyed in a cross-sectional study of 100 male ship yard workers and 43 male office workers. And baseline checklist for risk assessment of cumulative trauma disorders was applicated in a ship making process. Cases of cumulative trauma disorders were defined using physical examinations and electronic diagnostic methods. Data on demographics, individual factors (medical condition), work organization and psychosocial aspects of work were obtained by questionnaire. Association between the above factors and cumulative trauma disorders were assessed by multiple logistic regression models. 29(29 %) participants of male shipyard workers and 4(9.2 %) study subjects of male office workers met our case definitions for cumulative trauma disorders. The myofascial pain syndrome of neck muscles(12 % of participants) and carpal tunnel syndrome(5 % of participants) were the major two medical conditions in shipyard workers. The odds of male shipyard workers for cumulative trauma disorders to male office workers was 3.15 after adjustment of age(95 % C.I. :2.25-5.44). And the variables such as duration of present job, HIVD condition, and surges in workload were associated at least one of the cumulative trauma disorders in the final models (p<0.05) . This study indicates that work related upper extremity musculoskeletal disorders are relatively common among shipyard workers, and shows that the psychosocial factors is not likely to be related to the occur rences of these disorders in heavy workers. Also we developed baseline checklist for risk assessment of cumulative trauma disorders. The checklist was unique in that its expected users were industrial hygienists and occupational healthing nurses who did not have much ergonomic background and in that it was targeted to Korean workers in various types. As the first application of the checklist, shipyard workers were evaluated.
Checklist* ; Cross-Sectional Studies ; Cumulative Trauma Disorders* ; Demography ; Humans ; Logistic Models ; Male ; Myofascial Pain Syndromes ; Neck ; Occupational Health ; Physical Examination ; Psychology ; Questionnaires ; Risk Assessment* ; Ships ; Upper Extremity

BACKGROUND AND OBJECTIVES: Guanylin and uroguanylin are small, heat-stable peptides that were originally isolated from the small intestine and urine, respectively. Functionally, it has been proposed that these peptides can regulate the ion and water transport in various fluid-transporting epithelia. The present study evaluated the presence of mRNAs for the human guanylin and uroguanylin in human inferior turbinate mucosa and nasal polyp. MATERIALS AND METHOD: The expression and localization of mRNA for both peptides were investigated in inferior turbinate tissues and nasal polyp using reverse transcriptase polymerase chain reaction (RT-PCR) and in situ hybridization. RESULTS: The mRNAs for both peptides were detected in human turbinate mucosa and nasal polyp. In situ hybridization revealed that they were localized in the epithelial layer and submucosal glands of inferior turbinate mucosa and in the epithelial layer of nasal polyp. However, their expression in the superficial epithelium of nasal polyp was noted at lower levels than in the inferior turbinate mucosa. CONCLUSION: These results indicate that guanylin and uroguanylin in the nasal mucosa may participate in normal physiological processes, but also suggest that altered expression of these genes in nasal polyp may cause impaired electrolyte and water transport across the epithelial cells.
Epithelial Cells ; Epithelium ; Humans* ; In Situ Hybridization ; Intestine, Small ; Mucous Membrane ; Nasal Mucosa* ; Nasal Polyps* ; Peptides ; Physiological Processes ; Reverse Transcriptase Polymerase Chain Reaction ; RNA, Messenger* ; Turbinates ; Water

BACKGROUND AND OBJECTIVES: Electrolyte transport by nasal epithelia has been suggested to be important for controlling the quantity and composition of the nasal fluid and may play an important role in the development of nasal polyps. Transepithelial transport of ion and water in various fluid-transporting epithelia is strictly dependent on the localization of specific membrane proteins in the polarized epithelial cells. Na+ : HCO3-cotransporter (NBC) transports Na+ and HCO3- into the intracellular from extracellular space and induces the evacuation of H+, regulating pH. K+ : Cl- cotransporter (KCC) controls the cell volume and resorption of NaCl which is associated with the extracellular transport of K+ and Cl-. The present study evaluated the presense of mRNA for NBC and KCC in human inferior turbinate and nasal polyp. MATERIALS AND METHOD: The expression of NBC and KCC mRNA isoforms in inferior turbinate mucosa and nasal polyp was evaluated, using RT-PCR and in situ hybridization. RESULTS: RT-PCR revealed that the inferior turbinate and nasal polyp mucosa expressed kNBC, KCC1 and 4 mRNA. In in situ hybridization, their distribution was noted in the epithelial layer and submucosal glands of both mucosa. CONCLUSION: These results indicate that these types of ion transporters are expressed in human nasal mucosa and nasal polyp, controlling the fluid and ion transport in nasal epithelium and submucosal glands.
Cell Size ; Epithelial Cells ; Extracellular Space ; Humans* ; Hydrogen-Ion Concentration ; In Situ Hybridization ; Ion Transport ; Membrane Proteins ; Mucous Membrane ; Nasal Mucosa* ; Nasal Polyps* ; RNA Isoforms ; RNA, Messenger* ; Turbinates ; Water