FST 344FST

Images are illustrative. Actual specifications are as selected and confirmed in writing.

Growth Hormone & IGF-1

FST 344

Muscle growth research

FST 344 specifications and reference prices. Select a specification to add it to your cart.

1mg/vial x 10vials

Reference priceUS$500

For laboratory research only. Not for human or veterinary use.

COA 检测报告 / Reports

Compare all specifications & reference prices
SKUSpecification / packReference price (USD)
FST1mg/vial x 10vialsUS$500

Temporarily sold-out specifications can still be added to an inquiry to ask about restocking. An inquiry is not an order or an agreed price.

RESEARCH FOCUS

Main Uses & FAQs

This page uses muscle growth-related research as the direction for data checking. No qualified primary literature directly applicable to the main use of this product has been screened; related background does not serve as verification of product efficacy.

Main TopicsMuscle growth research
USAGE REFERENCE

Follistatin 344 · Reference for use (research purposes)

The following presents common research-context references for reconstitution, storage, dosage and cycles. The following presents common references in research settings. This page does not constitute advice for use in humans or animals.

🧪Reconstitution

Suggested Diluent
Bacteriostatic Water (containing 0.9% benzyl alcohol); some peptides may use sterile water or acetic acid to aid dissolution. See the individual product descriptions.
Diluent Volume
Slowly introduce the diluent along the vial wall until the lyophilized powder is covered. A common example is 5 mg reconstituted with 2 mL of bacteriostatic water, yielding approximately 2.5 mg/mL. Referenced reconstitution volumes are approximately 1–2.5 mL, with 2 mL commonly used. It is suggested to select and record a fixed volume based on the COA supplied with the purchase.
Handling Notes
Introduce the diluent slowly along the vial wall rather than directly onto the lyophilized powder. Leave it for 60–90 seconds to dissolve naturally; do not shake vigorously.

💾Storage

Unreconstituted Lyophilized Powder
Refrigerate at 2–8°C, protected from light; avoid repeated freeze–thaw cycles.
After Reconstitution
Refrigerate at 2–8°C; a common recommendation is touse within 28 days; do not freeze.
Transport
For short periods, use insulated packaging with ice packs; avoid high temperatures and direct light.

📏Dosage Reference (Research)

Purpose / SettingCommon Reference
ExplanationIdentity pending verification, limited data

Note: The above describes common research-context references, rather than clinical recommendations. Refer to the batch COA and research protocol. For research use only; not for human or animal use.

Evidence and Identity VerificationKey Findings

What usage claims can FST 344 currently support?

Can indicate specifications in the catalog and research directions to be verified, but cannot yet give definite human or animal efficacy claims. No. Gene delivery enables tissue expression of related proteins, which differs from direct exposure to vial proteins and formulations, and cannot replace each other.

Before ReadingStudy populations, species, formulations and delivery conditions each have a defined scope. Research on an ingredient does not establish that this site's product batches have been validated for efficacy in humans or veterinary use.
0 main theme references · Identity/formulation needs verificationSorted by First Publication Date ↓
Identity / formulation must be verified

Qualified direct in vivo main literature has not yet been screened

No. Gene delivery causes tissue to express related proteins, which is different from the exposure and formulation of directly administered vial proteins, and cannot substitute for each other.

See common questions about this product ↓

Supplement background3 articles · not counted among in vivo main literature

The following information is used to explain mechanisms, material identity, or evidence boundaries and cannot replace direct in vivo validation of the same product, formulation, and use.

Study hierarchy according to design2017 · Historical basic researchREF. 01

What questions are answered by FST344 gene delivery studies?

Research Findings

Increased muscle proportion, decreased body fat proportion.[1] ↗

Study Design

Transgenic pig; FST344 gene expression

Scope & Limitations

Gene expression experiments, not injection of bottled FST344 protein.

View the Article Title and Full Citation+

The transgenic expression of human follistatin-344 increases skeletal muscle mass in pigs.

Chang F, Fang R, Wang M, Zhao X, Chang W, Zhang Z, Li N, Meng Q.

Transgenic Research · Volume and issue year 2017
First published 2016-10-27 · PMID 27787698
DOI 10.1007/s11248-016-9985-x

Human Study2017 · Historical basic researchREF. 02

What form of intervention is used in studies related to FST344 expression?

Research Findings

Some walking and histological indicators improved, supporting FS344 gene therapy development.[2] ↗

Study Design

6 patients with inclusion body myositis; AAV gene therapy.

Scope & Limitations

Combined exercise, small sample; cannot be converted into efficacy evidence for protein injection.

View the Article Title and Full Citation+

Follistatin Gene Therapy for Sporadic Inclusion Body Myositis Improves Functional Outcomes.

Mendell JR, Sahenk Z, Al-Zaidy S, Rodino-Klapac LR, Lowes LP, Alfano LN, Berry K, Miller N, Yalvac M, Dvorchik I, Moore-Clingenpeel M, Flanigan KM, Church K, Shontz K, Curry C, Lewis S, McColly M, Hogan MJ, Kaspar BK.

Molecular therapy : the journal of the American Society of Gene Therapy · Volume/Issue Year 2017
First published 2017-03-06 · PMID 28279643
DOI 10.1016/j.ymthe.2017.02.015

Human Study2015 · Historical basic researchREF. 03

Why can FST344 gene therapy not be equated with bottled protein?

Research Findings

Some patients showed improvements in 6-minute walk test and histological indicators.[3] ↗

Study Design

6 patients with Becker muscular dystrophy; gene therapy Phase I/IIa.

Scope & Limitations

Vector-mediated gene delivery, completely different from lyophilized protein injection.

View the Article Title and Full Citation+

A phase 1/2a follistatin gene therapy trial for becker muscular dystrophy.

Mendell JR, Sahenk Z, Malik V, Gomez AM, Flanigan KM, Lowes LP, Alfano LN, Berry K, Meadows E, Lewis S, Braun L, Shontz K, Rouhana M, Clark KR, Rosales XQ, Al-Zaidy S, Govoni A, Rodino-Klapac LR, Hogan MJ, Kaspar BK.

Molecular therapy : the journal of the American Society of Gene Therapy · Volume/Issue Year 2015
First published on 2014-10-17 · PMID 25322757
DOI 10.1038/mt.2014.200

i

No. Gene delivery causes tissue to express related proteins, which is different from the exposure and formulation of directly administered vial proteins, and cannot substitute for each other. This page is a collection of usage-oriented positive data, not a systematic review or dosing recommendation. Historical studies, combination preparations, and special models are all separately marked.

GO DEEPER

What Questions Do These Studies Address?

Compare study populations, findings and scope.

↗
QUESTIONS, ANSWERED

FST 344 · Frequently Asked Questions.

Does FST344 gene therapy validate bottled FST344 protein?+

No. Gene delivery causes tissue to express related proteins, which is different from the exposure and formulation of directly administered vial proteins, and cannot substitute for each other.[1] ↗ [2] ↗ [3] ↗

FST 344 Why aren’t 3–5 efficacy papers listed?+

At this stage, no sufficient qualified original studies have been screened that simultaneously correspond to commercial identity, main research purpose, and intervention form. Papers with similar names, single components, or other purposes cannot be used to supplement the data.

Current status of data / procurement verification, not efficacy conclusions.
What materials are needed when reviewing FST 344 study materials?+

The full name, CAS or sequence, modifications/salt form, component ratio, source, and SKU batch COA should first be verified, then compared item by item with the paper materials.

Current status of data / procurement verification, not efficacy conclusions.

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