scholarly journals Study on protocol improvement for spinal muscular atrophy preimplantation genetic diagnosis by using the minisequencing technique

Author(s):  
Nguyen Thi Thanh Nga ◽  
Tran Van Khoa ◽  
Nguyen Thi Hong Van ◽  
Ngo Truong Giang

Spinal muscular atrophy (SMA) is a severe neurodegenerative autosomal recessive disorder. Most of patients are caused by the homozygous absence of exon 7 of the telomeric copy of the SMN gene (SMNt) on chromosome. Children with SMA often died prematurely at school age. Therefore, the aim of the study was to improve protocol for spinal muscular atrophy preimplantation genetic diagnosis by using the minisequencing technique. The study was conducted on 30 embryonic cell templates byopsied plus embryos, and four couples were treated using this method. Five unaffected embryos were transferred which resulted in two clinical pregnancy. We have successfully applied the technique of minisequencing for the Preimplantation Genetic Diagnosis of spinal muscular atrophy.    

Author(s):  
Arthur H. M. Burghes ◽  
Vicki L. McGovern

Spinal muscular atrophies affect the lower motor neuron. The most common SMA maps to 5q is an autosomal recessive disorder. SMA is caused by loss or mutation of the SMN1 gene and retention of the SMN2 gene, and these genes lie in a complex area of the genome. Mild missense alleles of SMN1 work to complement SMN2 to give function and therapeutics that restore SMN levels are in clinical testing. Modifiers that lie outside the SMN gene locus and influence severity clearly exist, but what they are remains unknown as do the critical genes affected by SMN deficiency.


1997 ◽  
Vol 12 (Suppl_2) ◽  
pp. 70-70
Author(s):  
J.C.F.M. Dreesen ◽  
M. Bras ◽  
H.J.M. Smeets ◽  
J.M. Cobben ◽  
C. de Die-Smulders ◽  
...  

2003 ◽  
Vol 23 (8) ◽  
pp. 685-689 ◽  
Author(s):  
C�line Moutou ◽  
Nathalie Gardes ◽  
St�phane Viville

Neurology ◽  
1999 ◽  
Vol 53 (5) ◽  
pp. 1087-1087 ◽  
Author(s):  
L. Fallon ◽  
G. L. Harton ◽  
M. E. Sisson ◽  
E. Rodriguez ◽  
L. K. Field ◽  
...  

2004 ◽  
Vol 19 (2) ◽  
pp. 199-206 ◽  
Author(s):  
Mira Malcov ◽  
Tamar Schwartz ◽  
Nava Mei-Raz ◽  
Dalit Ben Yosef ◽  
Ami Amit ◽  
...  

2018 ◽  
Vol 36 ◽  
pp. e36
Author(s):  
Anna Orlova ◽  
Yana Sofronova ◽  
Svetlana Zhikrivetskaya ◽  
Ekaterina Pomerantseva

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Mei Yao ◽  
Yu Xia ◽  
Yijie Feng ◽  
Ying Ma ◽  
Yi Hong ◽  
...  

Abstract Background Spinal muscular atrophy (SMA) is a rare neurogenetic disease which involves multisystem dysfunctions such as respiratory, digestive, and motor disorders. Anxiety, depression and other psychological disorders often accompany severe chronic physical diseases. The aim of this study was to investigate the prevalence of anxiety and depression along with their influencing factors among school-age patients with SMA. Methods We conducted a cross-sectional study on school-age SMA patients in China. Patients aged 8–18 years with a genetic diagnosis of 5qSMA were invited to answer a questionnaire composed of sociodemographic and clinical questions, then to complete the Screen for Child Anxiety-Related Emotional Disorders and Depression Self-Rating Scale for depression and anxiety level evaluation. At the end of the questionnaire, further questions assessed the subjective anxiety and subjective depression of patients’ caregivers and their expectations for their child’s future. Results Complete data were available for 155 patients. The sample included 45.8% boys and 54.2% girls; 65.2% were type II, 27.1% were type III, and the remainder were type I SMA. Rates of anxiety and depression in these school-age SMA patients were 40.0% and 25.2%, respectively. Gender, age, and disease type were not associated with anxiety or depression, but respiratory system dysfunction, digestive system dysfunction, skeletal deformity, rehabilitation exercise, academic delay, specialized support from school, household income level, caregivers’ subjective anxiety, and caregivers’ expectations were significantly related to both anxiety and depression. Conclusions There was a high prevalence of anxiety and depression in school-age SMA patients in China. Professional psychological care maybe included in the standard of care. These results also call for possible targets for intervention such as reducing complications, improving drug accessibility, retaining normal schooling, strengthening school support, and enhancing the ability of the caregivers of SMA patients to assist in the diagnosis and treatment of the disease, so improving the mental health of SMA patients.


2001 ◽  
Vol 21 (6) ◽  
pp. 498-503 ◽  
Author(s):  
Céline Moutou ◽  
Nathalie Gardes ◽  
Catherine Rongières ◽  
Jeanine Ohl ◽  
Karima Bettahar-Lebugle ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document