Stephens 1978 (continued), animal model literature rows, Outcome measure in nGD (SST / mSST)

Stephens 1978 (continued)

2 day post3 day post4 day post5 day post8 day post12 day post
24%42% / 64%61%63%

nothing done to Saposin C

Animal model literature rows

#Reference / strainTreatmentEnzyme inhibition (24h post) / substrateSubstrate measuredClinical / phenotypeNeuropathology
2Ginns (2014, US) (C57BL/6 mice, males aged 8 weeks)100mg/kg daily for 9 days in mouse
Nothing done to Saposin C
Not shown1. motor impairments, but no change in food intake or body weight 1. TH+ cell not done
2. microglial activation in SN (IBA1 IF visualized but not quantified)
3. a-syn accumulation in SN & Striatum (IF, not Q)
↓ striatal dopamine release
3Xu (2008) (post-natal day 5 or 15)100mg/kg, IP, daily for 6-11 days in mouse
Nothing done to Saposin C
4.5% (3hr post injection) → 10.2% of WT (24hr post injection)Die by the age of 14 days ↓ microglial activation 노력 애기 못 잔겠음. (1 CD68 cells, no Q)
2. Neuronal loss
↑ TUNEL cells, no Q
(↓ NeuN Ab cells, Q)

Indeed, the TG model was mimicked by CBE by treatment for 10-14 days with complete recapitulation of the CNS abnormalities. here it was highly specific and provides a reliable and informative phenotype.
4Vitner (2014) (C57BL/6 mice, aged from 8 days)50mg/kg (or PBS) IP, daily
Nothing done to Saposin C
RIPK3 in cell death
5Manning-Bog (2009) (C57BL/6 mice, 3 weeks)A single 200mg/kg, ip,
Nothing done to Saposin C
Not doneNot done
48 h post CBE injection
1. a-syn ↑ in SN but not in cortex / hippocampus (IF, not Q)
2. ↑ a-syn (WB) in ventral mesencephalon homogenates: monomer 가 particulate fraction (insoluble 과 debris 가 같이 있겠구만)에서 증가 (by 20%), supernatant fraction (=내 normal lysate, cellular debris 등만 제거된 상태이니, cytosolic 과 membrane form 이 같이있겠구만)에서는 안 증가, (oligomer 는 양 fraction 에서 안 보임)
GFAP in SN & cortex (IF, not Q)
6Rockenstein (2016 #594) / Genzyme poster / Panarello, 2013
WT mice & PrP-A53T-SNCA mice
100mg/kg, 3x/week, 10 w
Nothing done to Saposin C,
Not doneNot done 5-panel chart labels: A GCase Activity, B Hexosaminidase Activity, C GlcCer, D GlcSph, E α-Synuclein ELISA. Groups: WT, PrP-A53T-SNCA × Saline / CBE.
7Rocha (2015) Male BDF1 mice 3-4 months100mg/kg, IP, daily for 28 days Inhibition (post 24h): 자로잼
Forebrain: 29.1%
Midbrain: 20.8%
Cbll: 24.4%
Recovery (post 7d):
Forebrain: 77.9%
Midbrain: 80.2%
Cbll: 78.1%
Substrate measured 1. No change in the number of dopaminergic (TH + NeuN-labeled) neurons in SNpc or the number of NeuN-labeled neurons in the pars reticulate, also no effect on dopaminergic striatal fiber density
2. Iba-1-positive microglia throughout the brain, which remains highly reactive even 7 days postcessation of CBE, (ie cortical layer V, striatum and SN), not quantified but just by IF
3. ↑ proteinase-K resistant a-syn aggregates (by IHC)
1. ↑ LC3II (by 36%, 자로잼), ↑ LAMP2 (51% 자로잼), p62: (only trend due to high error bar despite 71.4% increase), ↑ Cathepsin D (which normaly degrades a-syn)
2. neuronal cell loss in the motor and somatosensory cortices.
Kanfer (1975) (C57BL/6 mice, aged from 3 months)100mg/kg, IP, daily for 3 weeks5 fold increase in brain

Outcome measure in nGD

ToolReferenceRangeExamples used
SST (severity scoring tool) (Original)(Davies, 2007 #828)Normal 0 - worst (total) 39
mSST (Modified Severity Scoring Tool)(Davies, 2011 #552)Normal 0 - worst (total) 36, 12 domainsVenglustat P2 "LEAP"

mSST domain scoring

DomainDescriptionScore
Gaze palsyNormal (although not likely in diagnosis)0
Horizontal saccades absent, vertical saccades present0.5
Horizontal saccades and vertical saccades absent1
OphthalmologyNormal0
Cranial nerve palsy (previously corrected or not)1
Cranial nerve palsy (reappearing despite surgical correction)2
EpilepsyNo seizures.0
Seizures not requiring anticonvulsants3
Seizures controlled with anticonvulsants.4
Seizures requiring combination therapy or resistant to anticonvulsants5
Age at first seizureYounger than 5 years3
5-10 years2
10-15 years1
16 years or over, or seizure free0
Development / Cognitive abilityNormal0
Mildly impaired (IQ less than 85 or equivalent)1
Moderate (IQ 50-57 or equivalent)2
Severe (more than half their chronological age)3
Ataxia of gaitNormal, apparent only on tandem walking0
Ataxia on straight gait, able to walk without assistance1
Able to walk only with assistance2
Unable to walk3
Cerebellar tremorNo intention tremor0
Intention tremor not affecting function0.5
Intention tremor with marked impact on function2
PyramidalNormal tone with increased reflexes0
Mildly to moderately increased tone and reflexes2
Increased tone and reflexes with clonus, whether unsustained or sustained3
Severe spasticity with inability to walk5
ExtrapyramidalNormal0
Variable tone and posturing not impairing function, with or without therapy.1
Variable tone and posturing impairing function, despite therapy2
Significant rigidity with no/minimal benefit from therapy3
Swallowing difficulties / Oral bulbar functionNormal0
Mild dysphagia (excess drooling)1
Moderate dysphagia (risk of aspiration, modification to diet required)2
Severe dysphagia (requiring non-oral feeding)3
SpeechNormal (and those too young yet to speak)0
Mild to moderate dysarthria impairing intelligibility to unfamiliar listener1
Severe dysarthria with most speech unintelligible to familiar and unfamiliar listener2
Anarthria3
Spinal alignmentNormal0
Mild kyphosis - but flexible and not requiring bracing1
Moderate kyphosis - partially corrected by bracing2
Severe kyphosis - not corrected by bracing or requiring surgery3
Total36

Uncertain Spans

locationtranscriptionuncertainty
Stephens 1978 tailfull row-by-column alignment for 2-12 day post rowsnot all column cells are clearly visible at the top of frame; values transcribed where legible.
mSST scoring / Cognitive abilityModerate (IQ 50-57 or equivalent)reads as written; the IQ range is small, OCR also returned IQ 50-67.