A Cytogenetic Survey of the Mentally Retarded Children.
	    		
		   		
	    	
    	
    	
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Kap Soon JU
			        		
			        		;
		        		
		        		
		        		
			        		Hee Kyung LEE
			        		
			        		
		        		
		        		
		        		
		        		
		        		
			        		
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Karyotype;
			        		
			        		
			        		
				        		Autosoome;
			        		
			        		
			        		
				        		Sex Chromosome;
			        		
			        		
			        		
				        		Mentally Retarded
			        		
			        		
	        			
        			
        		
 
        	
            
            	- MeSH:
            	
	        			
	        				
	        				
				        		
					        		Abnormal Karyotype;
				        		
			        		
				        		
					        		Child*;
				        		
			        		
				        		
					        		Cytogenetics*;
				        		
			        		
				        		
					        		Down Syndrome;
				        		
			        		
				        		
					        		Female;
				        		
			        		
				        		
					        		Humans;
				        		
			        		
				        		
					        		Karyotype;
				        		
			        		
				        		
					        		Male;
				        		
			        		
				        		
					        		Mentally Disabled Persons*;
				        		
			        		
				        		
					        		Seoul;
				        		
			        		
				        		
					        		Sex Chromosomes
				        		
			        		
	        			
	        			
            	
            	
 
            
            
            	- From:Korean Journal of Obstetrics and Gynecology
	            		
	            		 2000;43(1):11-16
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:Korean
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	OBJECTIVE: A cytogenetic survey of the mentally retarded children in Seoul City Welfare Center for the Mentally Retarded and St Peter school has been undertaken. METHODS: The chromosome analysis was carried out in 92 males and in 66 females as  a total of 158 cases. RESULTS: Abnormal karyotypes were observed in 22.2% of the total cases (35/158). Autosome and sex chromosome anomaly were observed in 20.3%(32/158) and 1.9%(3/158) respectively. Of 35 cases of anomaly, 91.4%(32/35) was autosome anomaly and 8.6%(3/35), sex chromosome anomaly. CONCLUSION: Down syndrome karyotype was the most frequent anomaly among autosome anomalies which was 62.5%(20/32) and other autosome anomalies were observed in 37.5%(12/32).