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The Brain Research Through Advancing Innovative Neurotechnologies® (BRAIN) Initiative Cell Atlas Network (BICAN) aims to transform our understanding of brain cell types and the precise tools needed to access them, bringing us one step closer to unraveling the complex workings of the human brain.
Building on findings from the BRAIN Initiative Cell Census Network (BICCN), BICAN takes the next step in mapping brain cells and circuits across multiple species, with an emphasis on humans. The aim of BICAN is to generate a complete reference atlas of cell types in the human brain across the lifespan, which can be shared and used throughout the research community. In addition to developing a “parts list” detailing the vast array of neurons and non-neuronal cells in the human brain, the project also aims to map cell interactions that underlie a wide range of brain disorders.
To this end, BICAN aims to support the publication, sharing, and exploration of datasets generated in the course of the project. Creating a complete reference atlas from multiple datasets requires vast harmonization of metadata. In order to facilitate the harmonization of metadata, we require datasets include a small set of metadata available from data submitters.
This document describes a schema, a type of contract, that BICAN requires of all donor to alignment datasets to enable searching, filtering, and integration of datasets.
Note that the requirements in the schema are just the minimum required information. Datasets often have additional metadata, which is preserved in datasets submitted to the data archives.
Overview
The BICAN Developing Human and NHP Tissue Metadata schema describes metadata associated with and produced from the preparation of macaque donor and tissue in the HMBA and BICAN. [more detail needed here]
Organisms. Data must be from a Metazoan organism and defined in the NCBI organismal classification.
Redundant Metadata. It is STRONGLY RECOMMENDED to avoid multiple metadata fields containing identical or similar information.
Developing Tissue
The data in developing tissue is the metadata essential for developing tissue experiments.
The following tables describe the developing tissue metadata. If an entry in the table is empty, the schema does not have any other requirements on data in those layers beyond the ones listed above.
Curators must annotate the following columns:
region of interest
BICAN Field Name
region of interest
BICAN UUID
71611b58-f98e-4a69-ad88-c0029a377cbe
Definition
The brain region, structure, or area from which a brain tissue source derives.
Aliases
ROI
Data Type
text
local donor ID
BICAN Field Name
local donor ID
BICAN UUID
f8af20f7-e8b8-47b5-8a68-9ec1f913ffdf
Aliases
subject_id
Definition
An identifier that uniquely denotes objects only within the scope of a specific object aggregate and that is not registered in an identifier registry.
Data Type
text
hemisphere
BICAN Field Name
hemisphere
BICAN UUID
68b7a28b-d695-4ec9-800b-6a27ca206081
Aliases
hemisphere
Definition
One of two bilateral, largely symmetrical organ subdivisions within the telencephalon which contain the cerebral cortex and cerebral white matter.
Data Type
exclusive_categorical
left hemisphere preparation
BICAN Field Name
left hemisphere preparation
BICAN UUID
57d5378f-a451-4bf5-a472-cc88d0d29586
Aliases
left_hemisphere_preparation
Definition
The type of preparation method used for the left hemisphere.
Data Type
exclusive_categorical
left hemisphere preparation specify
BICAN Field Name
left hemisphere preparation specify
BICAN UUID
002e915e-01c3-4570-a1f3-76680dcb2c33
Aliases
left_hemisphere_preparation_specify
Definition
Specific details about the type of preparation method used for the left hemisphere.
Data Type
text
left hemisphere tissue inventory
BICAN Field Name
left hemisphere tissue inventory
BICAN UUID
05e2821e-e7dc-4e33-94dc-7b55c372e5a0
Definition
The inventory (list) of the tissue samples for a specific left hemisphere specimen.
Aliases
left_hemisphere_tissue_inventory
Data Type
left hemisphere tissue sampling history
BICAN Field Name
left hemisphere tissue sampling history
BICAN UUID
b02f7dd7-4535-4b41-b8df-73786b8983bc
Definition
The history of the tissue sampling for a specific left hemisphere specimen.
Aliases
left_hemisphere_tissue_sampling_history
Data Type
right hemisphere preparation
<
BICAN Field Name
right hemisphere preparation
BICAN UUID
477c2600-f979-43c5-9c61-ab61fd771584
Aliases
right_hemisphere_preparation
Definition
The type of preparation method used for the right hemisphere.
Data Type
exclusive_categorical
right hemisphere preparation specify
BICAN Field Name
right hemisphere preparation specify
BICAN UUID
efd50be4-f7cf-4146-a08e-28f25680728c
Aliases
right_hemisphere_preparation_specify
Definition
Specific details about the type of preparation method used for the right hemisphere.
Data Type
text
right hemisphere tissue inventory
BICAN Field Name
right hemisphere tissue inventory
BICAN UUID
8b6b910f-beb7-4e2b-881a-7f862ef5d588
Definition
The inventory (list) of the tissue samples for a specific right hemisphere specimen.
Aliases
right_hemisphere_tissue_inventory
Data Type
right hemisphere tissue sampling history
BICAN Field Name
right hemisphere tissue sampling history
BICAN UUID
60d2efe0-bf7f-48f7-96fc-71cdf03226dd
Definition
The history of the tissue sampling for a specific right hemisphere specimen.
Aliases
right_hemisphere_tissue_sampling_history
Data Type
RIN
BICAN Field Name
RIN
BICAN UUID
cd472c0d-0b64-45c9-a38e-e54d15cea953
Definition
The RNA integrity number value of a specimen.
Aliases
rin
Data Type
numeric
RIN tissue source
BICAN Field Name
RIN tissue source
BICAN UUID
d547ee51-9ec3-489c-8e49-7d8cd94080a8
Definition
The tissue sample location or identifier that is used for calculating the RNA integrity number.
Aliases
rin_tissue_source
Data Type
text
RIN testing organization
BICAN Field Name
RIN testing organization
BICAN UUID
cfed831e-9a62-4a32-bf92-532873420eb3
Definition
The organization that determines the RNA integrity number of a sample/specimen.
Aliases
rin_testing_organization
Data Type
text
RINe
BICAN Field Name
RINe
BICAN UUID
1210148d-d8fb-45aa-b51a-4b19b6d09bec
Definition
A type of RIN (RNA integrity number) value that represents the relative ratio of the signal in the fast zone to the 18S peak signal fpr a specimen.
Aliases
rine
Data Type
numeric
RINe tissue source
BICAN Field Name
RINe tissue source
BICAN UUID
7d5fd9af-82a1-4bdb-a3c6-9225d1717c53
Definition
The tissue sample location or identifier that is used for calculating the RINe number.
Aliases
rine_tissue_source
Data Type
text
RINe testing organization
BICAN Field Name
RINe testing organization
BICAN UUID
15a6d162-a3ca-4852-b626-a911c37c04c9
Definition
The organization that determines the RINe number.
Aliases
rine_testing_organization
Data Type
text
pH
BICAN Field Name
pH
BICAN UUID
9e67af02-c081-43e1-a42c-bf9603cae616
Definition
The value of a measurement of acidity or basicity of a tissue, sample, or specimen.
Aliases
ph
Data Type
numeric
brain weight measurement
BICAN Field Name
brain weight measurement
BICAN UUID
546fc32d-f8a2-4c00-924a-8c4730f11f51
Definition
The weight of a brain specimen.
Aliases
brain_weight
Data Type
numeric
brain tissue weighed type
BICAN Field Name
brain tissue weighed type
BICAN UUID
a7463e3f-0c61-4718-a7d0-60fd2116908a
Definition
The state of a brain specimen when it is weighed (fresh, frozen, fixed).
Aliases
weighed_type
Data Type
exclusive_categorical
photo 2d available
BICAN Field Name
photo 2d available
BICAN UUID
611beda8-1ac6-4183-a284-04a30bb474f3
Definition
The status (available, unavailable) of two-dimensional photos of a subject/donor/specimen.
Aliases
photo_2d_available
Data Type
exclusive_categorical
species
BICAN Field Name
species
BICAN UUID
d11fb2ce-bfdb-4735-9b17-b6ba606520b1
Definition
The species of a subject/donor/sample/specimen.
Aliases
species
Data Type
exclusive_categorical
matriline and patriline
BICAN Field Name
matriline and patriline
BICAN UUID
ae0447a3-0504-43a3-95d5-4248e53d3224
Definition
The relavant matriline and patriline information for a subject/donor/sample/specimen.